Henry of Almain (b. 1235)
Henry of Almain (Anglo-Norman: Henri d'Almayne; 2 November 1235 – 13 March 1271), also called Henry of Cornwall, was the eldest son of Richard, Earl of Cornwall, afterwards King of the Romans, by his first wife Isabel Marshal. His surname is derived from a vowel shift in pronunciation of d'Allemagne ("of Germany"); he was so called by the elites of England because of his father's status as the elected German King of Almayne.