# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/william-ix-duke-of-aquitaine
# Generated: 2026-09-01T15:08:02.601Z

schema: https://schema.org/Person
url: "https://fame.am/person/william-ix-duke-of-aquitaine"
name: "William IX, Duke of Aquitaine"
slug: "william-ix-duke-of-aquitaine"
description: "He ran a duchy and led armies into the Holy Land, but the reason his name survived nine centuries is eleven poems. William IX invented—or at least first recorded—the troubadour tradition, writing love lyrics in Occitan when courtly literature barely existed."
tagline: "Duke of Aquitaine and Gascony and Count of Poitou"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/BnF_ms._12473_fol._128_-_Guillaume_IX_d'Aquitaine_(1).jpg"
gender: "male"
country:
  name: "France"
  isoCode: "FR"
category:
  name: "Writers"
  slug: "writers"
profileType:
  name: "Writer / Author"
  slug: "writer"
birthDate: "1071-10-22"
deathDate: "1126-02-10"
livingStatus: "DECEASED"
scores:
  popularity:           54.38
  momentum:             0.09992862241256247
  historical:           23.6547
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
tags:
  - name: "Business Professionals"
    slug: "business-professionals"
  - name: "Writer / Author"
    slug: "writer-author"
  - name: "Poetry"
    slug: "poetry"
  - name: "Literature"
    slug: "literature"
  - name: "Classical"
    slug: "classical"
  - name: "Medieval Era"
    slug: "medieval-era"
sources:
  - url: "https://www.wikidata.org/wiki/Q5351"
    title: "Wikidata"
    type:  "WIKIDATA"
  - url: "https://en.wikipedia.org/wiki/William_IX,_Duke_of_Aquitaine"
    title: "Wikipedia"
    type:  "WIKIPEDIA"
  - url: "https://pantheon.world/profile/person/William%20IX%2C%20Duke%20of%20Aquitaine"
    title: "Pantheon 2.0"
    type:  "DATABASE"
  - url: "https://be.wikipedia.org/wiki/%D0%93%D1%96%D0%BB%D1%8C%D1%91%D0%BC_IX_(%D0%B3%D0%B5%D1%80%D1%86%D0%B0%D0%B3_%D0%90%D0%BA%D0%B2%D1%96%D1%82%D0%B0%D0%BD%D1%96%D1%96)"
    title: "Гільём IX (герцаг Аквітаніі)"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%93%D0%B8%D0%B9%D0%BE%D0%BC_%D0%B4%D1%8C%D0%BE_%D0%9F%D0%BE%D0%B0%D1%82%D0%B8%D0%B5"
    title: "Гийом дьо Поатие"
    type:  "WIKIPEDIA"
  - url: "https://br.wikipedia.org/wiki/Gwilherm_IX_Poatev"
    title: "Gwilherm IX Poatev"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Guillem_IX_d'Aquit%C3%A0nia"
    title: "Guillem IX d'Aquitània"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Vil%C3%A9m_IX._Akvit%C3%A1nsk%C3%BD"
    title: "Vilém IX. Akvitánský"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Wilhelm_IX._(Aquitanien)"
    title: "Wilhelm IX. (Aquitanien)"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%93%CE%BF%CF%85%CE%BB%CE%B9%CE%AD%CE%BB%CE%BC%CE%BF%CF%82_%CE%98%CE%84_%CF%84%CE%B7%CF%82_%CE%91%CE%BA%CE%BF%CF%85%CE%B9%CF%84%CE%B1%CE%BD%CE%AF%CE%B1%CF%82"
    title: "Γουλιέλμος Θ΄ της Ακουιτανίας"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/William_IX%2C_Duke_of_Aquitaine"
    title: "William IX, Duke of Aquitaine"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Vilhelmo_la_9-a_(Akvitanio)"
    title: "Vilhelmo la 9-a (Akvitanio)"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Guillermo_IX_de_Aquitania"
    title: "Guillermo IX de Aquitania"
    type:  "WIKIPEDIA"
  - url: "https://et.wikipedia.org/wiki/Guillaume_IX"
    title: "Guillaume IX"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Gilen_IX.a_Akitaniakoa"
    title: "Gilen IX.a Akitaniakoa"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D9%88%DB%8C%D9%84%DB%8C%D8%A7%D9%85_%D9%86%D9%87%D9%85%D8%8C_%D8%AF%D9%88%DA%A9_%D8%A2%DA%A9%D9%88%D8%AA%DB%8C%D9%86"
    title: "ویلیام نهم، دوک آکوتین"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Vilhelm_IX_Akvitanialainen"
    title: "Vilhelm IX Akvitanialainen"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Guillaume_IX_d'Aquitaine"
    title: "Guillaume IX d'Aquitaine"
    type:  "WIKIPEDIA"
  - url: "https://gl.wikipedia.org/wiki/Guillerme_IX_de_Aquitania"
    title: "Guillerme IX de Aquitania"
    type:  "WIKIPEDIA"
  - url: "https://hr.wikipedia.org/wiki/Vilim_IX._od_Akvitanije"
    title: "Vilim IX. od Akvitanije"
    type:  "WIKIPEDIA"
  - url: "https://hu.wikipedia.org/wiki/IX._Vilmos_aquit%C3%A1niai_herceg"
    title: "IX. Vilmos aquitániai herceg"
    type:  "WIKIPEDIA"
  - url: "https://id.wikipedia.org/wiki/Guill%C3%A9m_IX_dari_Aquitaine"
    title: "Guillém IX dari Aquitaine"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Guglielmo_IX_d'Aquitania"
    title: "Guglielmo IX d'Aquitania"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%82%AE%E3%83%A8%E3%83%BC%E3%83%A09%E4%B8%96_(%E3%82%A2%E3%82%AD%E3%83%86%E3%83%BC%E3%83%8C%E5%85%AC)"
    title: "ギヨーム9世 (アキテーヌ公)"
    type:  "WIKIPEDIA"
  - url: "https://ko.wikipedia.org/wiki/%EA%B8%B0%EC%9A%A4_9%EC%84%B8_%EB%8B%A4%ED%82%A4%ED%85%90_%EA%B3%B5%EC%9E%91"
    title: "기욤 9세 다키텐 공작"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Willem_IX_van_Aquitani%C3%AB"
    title: "Willem IX van Aquitanië"
    type:  "WIKIPEDIA"
  - url: "https://en.wikiquote.org/wiki/William_IX%2C_Duke_of_Aquitaine"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://it.wikiquote.org/wiki/Guglielmo_IX_d'Aquitania"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://musicbrainz.org/artist/3ace9a3c-e7da-4def-b356-6620478812fc"
    title: "MusicBrainz"
    type:  "DATABASE"
  - url: "https://www.discogs.com/artist/1681142"
    title: "Discogs"
    type:  "DATABASE"

# bio (long form, separated for readability)
bio: |
  Born 22 October 1071, William inherited Aquitaine and Gascony in 1086, becoming one of the most powerful lords in France. He joined the Crusade of 1101 as a military leader, though the campaign ended poorly. His political maneuvers and wars left a mark on medieval power struggles, but what outlasted the battles were the verses. Writing in Occitan, the vernacular language of his southern domains, he composed lyric poetry that broke from Latin tradition—personal, erotic, sometimes irreverent. Eleven poems survive, making him the earliest troubadour whose work we can still read. He died 10 February 1126, leaving a duchy to his heirs and a literary form to Europe.