Catherine gave birth to Prince Henry on 6 December 1421 at Windsor. The boy and his father would never see each other. During the siege of Meaux, Henry V had a fatal illness (dysentery) and died on 31 August 1422, just before his 35th birthday. Catherine was not quite 21 and was left a widow and Dowager Queen of England. Charles VI then died. This made the young Henry VI king of England and English-occupied northern France.