On 22 Mar 1421 the Dauphin's (age 18) French army and a Scottish army heavily defeated the English army at the Battle of Baugé. On the French side Étienne Vignolles "La Hire" fought. On the Scottish side John Stewart 2nd Earl Buchan (age 40) and John Stewart of Darnley 1st Count Évreux (age 41) fought. William Douglas (age 37) was killed.

On the English side John Beaufort 1st Duke Somerset (age 18), Thomas Beaufort 1st Duke Exeter (age 44), Thomas Beaufort Count Perche (age 16) and John Holland 2nd Duke Exeter (age 26) were captured. John Beaufort 1st Duke Somerset (age 18) would be captive for the next seventeen years. Thomas Beaufort 1st Duke Exeter (age 44) was released in 1422. Thomas Beaufort Count Perche (age 16) was released around 1427 in a prisoner exchange.

Thomas Lancaster 1st Duke of Clarence (age 32) was killed in battle. Duke Clarence extinct.

John Lumley (age 38) was killed in battle.

John Ros 7th Baron Ros Helmsley (age 24) was killed in battle. His brother Thomas Ros 8th Baron Ros Helmsley (age 13) succeeded 8th Baron Ros Helmsley.

William Ros (age 24), and Gilbert V Umfraville were killed.

John Grey 1st Earl Tankerville (age 37) was killed in battle. His son Henry Grey 2nd Earl Tankerville (age 3) succeeded 2nd Earl Tankerville.

William Douglas 1st Lord Drumlanrig was present.