Henry of Almain was the song of one of the wealthiest men in Europe who joined what?
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). He was one of the wealthiest men in Europe and joined the Barons' Crusade, where he achieved success as a negotiator for the release of prisoners and assisted with the building of the citadel in Ascalon.
Walter Sans Avoir Walter Sans Avoir (in French Fr. Gautier Sans-Avoir; died 21 October 1096), also mistakenly known as the Penniless, was the lord of Boissy-sans-Avoir in the Île-de-France. As lieutenant to Peter the Hermit he co-led the People's Crusade at the beginning of the First Crusade. Leaving well before the main army of knights and their followers, Walter led his knights and pilgrims through the Holy Roman Empire, the Kingdom of Hungary and the Serbian (Syrmian) and Bulgarian province of the Eastern Roman Empire, traveling separately from Peter. While they passed through Germany and Hungary uneventfully, Walter's followers plundered the Belgrade area, drawing reprisals upon themselves. From here they continued to Constantinople under Byzantine escort.