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Nabopolassar
d. 605 BCE · sovereign
By The Keeper · Published
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Nabopolassar was the founder of the Neo-Babylonian Empire, ruling Babylon from 626 to 605 BCE after leading a long revolt that broke Assyrian control of southern Mesopotamia. In alliance with the Medes he destroyed the Assyrian capital of Nineveh in 612 BCE, ending an empire that had dominated the Near East for centuries. His victories cleared the way for Babylon's final age of greatness under his son Nebuchadnezzar II. Anyone asking who was Nabopolassar is really asking how Babylon, a conquered province, became the most powerful state of its time within a single generation.
Early Life and Obscure Origins
The man who ended the Assyrian Empire left almost no record of his beginnings. Nabopolassar's date of birth is unknown, and in his own royal inscriptions he called himself the "son of a nobody," a phrase that announced he claimed no royal parentage [1]. Whether this was literal truth or a deliberate rhetorical pose remains debated. Some scholars have connected him with the Chaldean tribes of southern Babylonia, the same population that had produced earlier anti-Assyrian rebels such as Merodach-Baladan II, while others suggest he came from Uruk, where a family of local governors may have been his relatives [2].
He grew up in a Babylonia that had lived under Assyrian domination for roughly a century. The Assyrian king Ashurbanipal had crushed a major Babylonian revolt in 648 BCE, sacking the city after a long siege, and the south remained restive under governors and puppet kings answerable to Nineveh [3]. A later Hellenistic tradition preserved by the historian Berossus claimed that Nabopolassar had once served as an Assyrian general before turning against his masters. The claim cannot be verified from contemporary documents, but it reflects a plausible career path for an ambitious Babylonian of the period [2].
What the sources do make clear is timing. Ashurbanipal's reign ended around 631 BCE, and the succession struggles that followed weakened Assyrian control over its southern territories. Into that opening stepped Nabopolassar, whose name in Akkadian, Nabu-apla-usur, means "Nabu, protect the son" [1].
Path to Prominence: The Revolt Against Assyria
The revolt began in the marshes and cities of the far south. According to the Babylonian chronicles, cuneiform tablets that record these years in terse annalistic style, fighting between Babylonian rebels and Assyrian forces broke out after the death of the Assyrian appointee Kandalanu, and Babylonia passed a full year with no king on the throne [4]. Nabopolassar took the crown of Babylon on 23 November 626 BCE, the date preserved in the chronicle tradition, after defeating an Assyrian army that had marched south to suppress him [4].
The early years of his reign were anything but secure. Assyrian armies returned repeatedly, and major cities such as Nippur remained loyal to Assyria for years, forcing Nabopolassar to fight a grinding war inside Babylonia itself before he could carry the fight north [3]. Contract tablets from this decade show different cities dating their documents by different kings, evidence of a land split between rival authorities [2]. Not until around 616 BCE was his control of the Babylonian heartland firm enough for offensive campaigns up the Euphrates into Assyrian territory.
His persistence through this decade of attritional warfare defined the reign. A rebel who had begun with a power base in the south gradually became the recognized king of all Babylonia, restoring native rule to a land that had answered to foreign masters since 729 BCE, when Tiglath-pileser III first took the Babylonian crown for Assyria [3].
Major Achievements: The Fall of Nineveh
Any account of Nabopolassar achievements centers on one event: the destruction of Nineveh. In 615 BCE the Medes, an Iranian people led by King Cyaxares, entered the war and stormed the ancient Assyrian religious capital of Ashur in 614 BCE. Nabopolassar arrived after the city had fallen, and there, according to the Babylonian chronicle, the two kings met on the ruins and concluded an alliance [4]. Later tradition held that the pact was sealed by the marriage of Nabopolassar's son Nebuchadnezzar to Amytis, a Median princess, though this detail comes from Berossus rather than contemporary records [2].
In 612 BCE the combined Babylonian and Median armies laid siege to Nineveh itself. The chronicle records that the city fell after roughly three months and that the Assyrian king Sinsharishkun died in its destruction [4]. Nineveh, the largest city of its age, was plundered and left in ruins so complete that classical Greek writers two centuries later struggled to identify its site. The event echoed far beyond Mesopotamia; the biblical book of Nahum celebrates the city's fall at length [5].
A rump Assyrian state under Ashur-uballit II held out at Harran in the west, propped up by Egyptian troops, but Babylonian and Median forces took Harran in 610 BCE, and an attempted Assyrian counterattack the following year failed [4]. With that, an empire that had ruled from Iran to Egypt disappeared from history. Nabopolassar had not merely rebelled successfully; he had erased the state that once destroyed Babylon.
King and Builder
War did not exhaust the reign. Nabopolassar presented himself in his inscriptions as a pious restorer, chosen by the gods Marduk and Nabu to avenge Babylonia and rebuild its sanctuaries [1]. He began major construction in Babylon, including work on the city walls, the temple precincts, and Etemenanki, the great ziggurat of Marduk that later generations associated with the Tower of Babel. One of his building inscriptions describes the king carrying earth for the ziggurat's foundations on his own head, a traditional gesture of royal humility before the gods [1].
He also rebuilt the administrative machinery of an independent kingdom. Temple archives from Uruk and Sippar show the crown reasserting control over the great religious estates, appointing officials and directing resources toward reconstruction after decades of war [2]. The wealth that would fund Nebuchadnezzar's spectacular building program in the next reign rested on foundations laid in these years.
A remarkable feature of his royal image was its frankness about humble origins. Rather than inventing a royal genealogy, his inscriptions turned obscurity into divine election: the gods had raised an unknown man to overthrow the mighty [1]. Among Mesopotamian kings, whose inscriptions usually parade long ancestries, this self-presentation is unusual and has made his texts a favorite subject for historians of royal ideology [6].
Family and Succession
Nothing certain is known of Nabopolassar's wife, and his personal life is visible only through his sons. The eldest, Nebuchadnezzar II, appears in the chronicles as crown prince commanding armies while his father still lived, an arrangement that gave the heir military experience and the kingdom a tested successor [4]. A younger son, Nabu-shum-lishir, is named in inscriptions alongside his brother, and administrative texts suggest other family members held positions in the temple hierarchy [2].
The grooming of Nebuchadnezzar proved decisive. By 607 BCE the aging king was entrusting entire campaigns in the upper Euphrates region to the crown prince, while he himself increasingly remained in Babylon [4]. This careful preparation stands in contrast to the chaotic successions that had helped destroy Assyria, and it ensured that the new empire would not die with its founder.
For readers gathering Nabopolassar facts, one detail deserves emphasis: no contemporary image of the king survives, and no text records his age at any point in his life. The founder of Babylon's greatest dynasty remains, in personal terms, nearly invisible [1].
Later Years and Death
The final phase of the reign was a contest with Egypt over the corpse of the Assyrian Empire. Pharaoh Necho II had marched north in 609 BCE to support the last Assyrians, and Egyptian forces then dug in along the upper Euphrates, holding the fortress city of Carchemish. For several years Babylonian and Egyptian armies skirmished across the region with no decisive result, and the chronicle notes that illness sometimes kept the old king from the field [4].
In 605 BCE Nabopolassar stayed in Babylon while Nebuchadnezzar led the army against Carchemish. The crown prince destroyed the Egyptian force there and pursued the survivors south through Syria in one of the most consequential battles of the ancient Near East [3]. In the midst of this triumph came news from home: Nabopolassar had died in Babylon, in August 605 BCE by the chronicle's reckoning [4].
Nebuchadnezzar raced back across the desert and took the throne within weeks, a succession so smooth that it barely registers in the documentation. The dead king was buried in Babylon; a later inscription of his grandson's era refers to his resting place, though the tomb has never been identified [2].
Legacy
Nabopolassar founded the last and most famous native dynasty of Babylon. The Neo-Babylonian Empire he created lasted until the Persian conquest of 539 BCE, and under his successors the city acquired the walls, gates, and temples that made it a wonder of the ancient world [3]. Every achievement of Nebuchadnezzar II, from the Ishtar Gate to the campaigns remembered in the Hebrew Bible, was built on the military and political foundation the father provided.
His destruction of Assyria reshaped the Near East permanently. The removal of the region's dominant power created the world in which Media, Lydia, Egypt, and Babylon competed as rough equals, the state system that Cyrus of Persia would later absorb [6]. Historians have also noted the irony that the Medes, Babylon's indispensable allies in 612 BCE, were ancestors in imperial terms of the Persians who ended Babylonian independence three generations later.
Modern knowledge of the reign rests chiefly on the Babylonian chronicles in the British Museum, first published by C. J. Gadd in 1923 and re-edited by Donald Wiseman and A. K. Grayson, together with the king's own building inscriptions [4]. A full scholarly edition of those inscriptions appeared in 2019, giving any reader of a Nabopolassar biography direct access to the king's own words: the voice of a self-described son of a nobody who brought down an empire [1].
Questions & Answers
- Who was Nabopolassar?
- Nabopolassar was a Babylonian rebel leader who became king of Babylon in 626 BCE and founded the Neo-Babylonian Empire. He freed Babylonia from Assyrian rule and, with his Median allies, destroyed the Assyrian Empire. He was the father of Nebuchadnezzar II.
- When was Nabopolassar born?
- His birth date is unknown, and no ancient source records it. In his inscriptions he called himself the son of a nobody, claiming no royal ancestry, so even his family background is uncertain. He died in August 605 BCE after a reign of 21 years.
- What is Nabopolassar famous for?
- He is best known for destroying the Assyrian Empire. Allied with the Medes under Cyaxares, his forces sacked the Assyrian capital Nineveh in 612 BCE. He also founded the Neo-Babylonian dynasty that ruled the Near East until 539 BCE.
- Was Nabopolassar the father of Nebuchadnezzar?
- Yes. Nebuchadnezzar II was his eldest son and crown prince, and he commanded Babylonian armies during his father's final years. He won the Battle of Carchemish against Egypt in 605 BCE and took the throne immediately after Nabopolassar's death.
- How did Nabopolassar defeat Assyria?
- He fought a long war of attrition inside Babylonia from 626 BCE, then allied with the Median king Cyaxares in 614 BCE. Their combined armies destroyed Nineveh in 612 BCE and captured the last Assyrian stronghold at Harran in 610 BCE.
- How long did Nabopolassar rule Babylon?
- He ruled for about 21 years, from November 626 BCE until his death in August 605 BCE. Nearly the entire reign was spent at war, first securing Babylonia itself and then campaigning against Assyria and Egypt.
References
Every record in this archive is kept against verifiable sources.
- [1]Jamie Novotny and Frauke Weiershäuser. The Royal Inscriptions of the Neo-Babylonian Empire, Volume 1: Nabopolassar. Eisenbrauns / Penn State University Press, 2019. Book
- [2]Amélie Kuhrt. The Ancient Near East c. 3000-330 BC, Volume II. Routledge, 1995. Book
- [3]Nabopolassar. Encyclopaedia Britannica. https://www.britannica.com/biography/NabopolassarWeb
- [4]A. K. Grayson. Assyrian and Babylonian Chronicles. J. J. Augustin, Locust Valley, New York, 1975. Primary source
- [5]D. J. Wiseman. Chronicles of Chaldaean Kings (626-556 B.C.) in the British Museum. Trustees of the British Museum, 1956. Book
- [6]Paul-Alain Beaulieu. A History of Babylon, 2200 BC - AD 75. Wiley Blackwell, 2018. Book
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