Complex sentence: However, the treatment of the dynasties was not even handed: the Earl of Ormonde, a cousin of the Queen's and a court favourite, managed to convince Elizabeth that it was the Geraldines who were at fault.
Split into simpler sentences: However, the treatment of the dynasties was not even handed. The Earl of Ormonde, a cousin of the Queen's and a court favourite, managed to convince Elizabeth that it was the Geraldines who were at fault.