Ptolemy II (also Ptolemaeus or Tolomeo) (d.1153) was the
count of Tusculum and
consul of the Romans (consul Romanorum) from 1126 to his death. He was the son and successor of
Ptolemy I. The younger Ptolemy entered the political scene of central Italy for the first time in
1117, when he appears as joint count with his father and is given in marriage to Bertha, illegitimate daughter of
Henry V, Holy Roman Emperor. At this time, the counts of Tusculum first claimed descent through the gentes
Julii and
Octavii, a claim Ptolemy continued. The counts were also confirmed in their possession of all the territory of the Consul Gregory, Ptolemy I's grandfather.
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