Question: Henry of Almain was the song of one of the wealthiest men in Europe who joined what?
Sentence (from "Henry of Almain"): Henry of Almain (Anglo-Norman French: "Henri d'Almayne") (2 November 1235 – 13 March 1271) was the son of Richard, 1st Earl of Cornwall and his first wife Isabel Marshal.
Relevant evidence: Yes