William IV Taillifer Count of Angoulême ^{1 2}

   Another name for William was Guillaume "Taillifer" Comté d'Angoulême.

  Research Notes:

3rd husband of Marguerite de Turenne.

From Wikipedia - William IV of Angoulême :

William IV of Angoulême, inherited the territory of Count of Angouleme from his father, Wulgrin II of Angoulême .

It is from him, that the territory was split between the three brothers all sons of William IV: Wulgrin III of Angoulême who was the eldest, William V of Angoulême and Aymer of Angoulême .

After the death of Aymer, the territory did not pass to Aymer's daughter, Isabella of Angouleme , Queen consort to John of England , but rather to the daughter of Wulgrim III, Mathilde of Angoulême , who had married Hugh IX of Lusignan , father of Hugh X of Lusignan .

  Noted events in his life were:

• Count of Angoulême, 1140-1179.

William married Marguerite de Turenne, daughter of Raymond I Viscount of Turenne and Mathilde de Perche, about 1147.