In spite of being pardoned by Caesar and allowed to return home, Marcus joined his brother-in-law Brutus and his ally Gaius Cassius Longinus in the assassination of Julius Caesar.
In spite of being pardoned by Caesar and allowed to return home, Appian, "The Civil Wars", Book II, 99. Cato joined his brother-in-law Brutus and his ally Gaius Cassius Longinus in the assassination of Julius Caesar.