Saltier than Carthage (if it had been salted)

Explanation: The Emperor Claudius had a highly successful reign in which he successfully reformed key parts of Roman law, established precedents for centuries to come, expanded the Empire, and ran a successful and financially responsible administration.

He also had terrible luck in his love life. As he was physically disabled and had a stutter, both traits deeply disliked by traditional Roman society, he was not regarded as a particular 'catch', even though he was part of a well-born family. His first wife cheated on him - his second wife abused him - his third wife cheated on him AND attempted to coup him - and his fourth wife assassinated him. Poor Uncle Claudius!