Complex sentence: Cleopatra of Pontus (born 110 BC) was a Pontian Princess, who was one of the daughters of King Mithridates VI of Pontus and Queen Laodice and wife of the Armenian King Tigranes the Great.
Split into simpler sentences: Cleopatra of Pontus (born 110 BC) was a Pontian Princess, who was one of the daughters of King Mithridates VI of Pontus and Queen Laodice. Cleopatra was the wife of the Armenian King Tigranes the Great.