 Philip and Olympias also had a daughter, Cleopatra, who later married her uncle, Alexander I of Epirus, to further diplomatic ties between Macedonia and Epirus.According to primary sources, their marriage was very stormy due to Philip's volatility and Olympias' ambition and alleged jealousy, which led to their growing estrangement.Things got more tumultuous in 337 BC when Philip married a noble Macedonian woman, Cleopatra, the niece of Attalus, who was given the name Eurydice by Philip.