In 1059, his brother Robert Guiscard, Humphrey's successor over Geoffrey, who was older, but had not been in the south as long, helped him quell a revolt in the Capitanate.
Pada tahun 1059, saudaranya Robert Guiscard, penerus Umfredo atas Goffredo, yang lebih tua, tetapi belum lama ada di selatan, membantunya menumpas pemberontakan di Capitanate.