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William IX, Duke of Aquitaine

The archive is edited continuously; cite the access date. For scholarly work, please also consult the primary sources listed in the entry's references.

The Keeper's editorial team. (2026). William IX, Duke of Aquitaine. Humans of History. Retrieved September 14, 2026, from https://humansofhistory.com/person/william-ix-duke-of-aquitaine

"William IX, Duke of Aquitaine." Humans of History, 8 Sep. 2026, https://humansofhistory.com/person/william-ix-duke-of-aquitaine. Accessed 14 Sep. 2026.

Humans of History. "William IX, Duke of Aquitaine." Last modified September 8, 2026. https://humansofhistory.com/person/william-ix-duke-of-aquitaine.

@misc{hoh-william-ix-duke-of-aquitaine,
  title        = {William IX, Duke of Aquitaine},
  author       = {{The Keeper's editorial team}},
  year         = {2026},
  howpublished = {\url{https://humansofhistory.com/person/william-ix-duke-of-aquitaine}},
  note         = {Humans of History archive, accessed 2026-09-14}
}