Marcus Livius Drusus
Livia Drusilla was born on 30 January 59 or 58 BC as the daughter of Marcus Livius Drusus Claudianus by his wife Alfidia. The diminutive "Drusilla" often found in her name suggests that she was not her father's first daughter. She may have had a brother named Gaius Livius Drusus who had a daughter named Livia Pulchra. Her father also adopted Marcus Livius Drusus Libo.