 After Caesar's death, Cimber left for Bithynia to raise a fleet in support of the leaders of the assassins, Marcus Brutus and Gaius Cassius Longinus.According to the pseudo-Brutus letters (purporting to be letters between Brutus and Cicero), he defeated Publius Cornelius Dolabella and provided naval support to Brutus and Cassius's invasion of Macedonia.He is last heard of shortly before the Battle of Philippi and is assumed to have been killed during the campaign.