Original: William III ( 915 & ndash ; 3 April 963 ) , called Towhead ( , ) from the color of his hair , was the '' Count of the Duchy of Aquitaine '' from 959 and Duke of Aquitaine from 962 to his death .
Simplified: William III of Aquitaine ( c. 915 -- April 3 , 963 ) became the Duke of Aquitaine and Count of Poitiers in 935 .