William Taillefer I

William "Taillefer" I (died Aug 962) was also known as William II of Angoulême (being the second William in this family since Wulgrin I. His uncle, William I, being the first). He was the Count of Angoulême from 926 to 945. He was the son of Alduin I.

According to one source, his surname, or sobriquet, was acquired due "...from the way in which he cut down a Norman Sea-king through his coat of mail." This Norman sea-king is identified as Storis. The name Taillefer was used by subsequent members of this family, especially holders of the title Count of Angoulême.

William was not married, but had at least one, and possibly two, illegitimate sons who would later claim the title of Count of Angoulême.

• Ademar II (possibly ruling as count from after 945 to before 952)
• Arnold II "Manzer" (count from 975 to 988)