Question: Henry of Almain was the song of one of the wealthiest men in Europe who joined what?
Sentence (from "Richard, 1st Earl of Cornwall"): Richard (5 January 1209 – 2 April 1272), second son of John, King of England, was the nominal Count of Poitou (1225-1243), Earl of Cornwall (from 1225) and King of Germany (from 1257).
Relevant evidence: Yes