His family acquired the fortress of Tusculum from Ptolemy II somehow before December 1152, when he sold his rights over Tusculum to Pope Eugene III.
At this point, his son was also titled count and this younger Ptolemy was given in marriage to Bertha, illegitimate daughter of Henry.
Ptolemy died in 1153 and was succeeded by his elder son Jonathan of Tusculum.
Ptolemy | Ptolemy I Soter | Ptolemy III Euergetes | Ptolemy IV Philopator | Ptolemy II Philadelphus | Tusculum | Ptolemy XII Auletes | Ptolemy V Epiphanes | Ptolemy of Mauretania | Ptolemy of Cyprus | Ptolemy II of Tusculum | Ptolemy Apion | Geography (Ptolemy) | Ptolemy X Alexander I | Ptolemy (name) | Ptolemy Keraunos | Ptolemy I of Tusculum | Ptolemy-el-Garib | Ptolemy Dean | Jonathan of Tusculum | Count of Tusculum | Barry Ptolemy |