Richemont is depicted as a Knight cavalry hero armed with a lance, similar to other hero units. He appears in the final scenario of the Joan of Arc campaign, A Perfect Martyr, and is also available in the Scenario Editor. Technologies that benefit cavalry also benefit Constable Richemont but he is not affected by other bonuses. As a hero, he cannot be converted and can regenerate health (since The Conquerors).
- He used the name Richemont after the Earldon of Richmond in northern England, which had been given to the Dukes of Brittany by William the Conqueror but was seized by the English Crown and given to the Duke of Bedford in 1414.
- Richemont was wounded and captured by the English at the Battle of Agincourt (1415).
- Although Richemont does not appear in The Cleansing of the Loire, he was part of the French forces at the Battle of Patay and met Joan of Arc while she was alive. On the other hand, he was not present at the Battle of Castillon, despite being included in A Perfect Martyr.
- Though made Grand Constable of France in 1425 (i.e. commander of all French forces, second only to the King), Richemont fought for his brother the Duke of Brittany at the Siege of Pouancé (1432), allied with the English Sir John Fastolf and against the French led by the Duke D'Alençon.
- In 1457, Richemont also refused to pay homage to Charles VII upon becoming Duke of Brittany in respect of Brittany's independence, all while remaining Constable of France.