Gregory III, Count of Tusculum
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Gregory II (died about 1108) was the son of Gregory II. He was the Count of Tusculum from 1058, when his father died. He is usually considered to stand at the fore of the family of the Colonna.
Unlike his father, he did not bear the ducal and senatorial titles, nor any title to Rome, but simply was patricius et consul. Gregory was succeeded by his eldest son, Ptolemy I. He had sons named Gregory, Peter, and Egidius and a daughter named Isdara.
