William de Blosseville
William de Blosseville, probably from Blosseville, was the consul and duke of Gaeta from 1103 to 1105, after ousting Duke Gualganus. He appears on Gaetan follari of his time as DV, which stands for dux Vilelmus. In 1105, he was exiled by Richard I of Aquila after less than two years as duke.
