Charles VI of France
Charles VI descended into recurring bouts of madness from 1392, believing himself made of glass and sometimes failing to recognise his own family. His incapacity fuelled a savage civil war between Armagnac and Burgundian factions, enabling English intervention and the catastrophic defeat at Agincourt in 1415. The Treaty of Troyes (1420) disinherited his own son in favour of Henry V of England.
- Lived: 1368 CE – 1422 CE
- Nationality: french
- Roles: king, head_of_state
