Henry of Almain was the song of one of the wealthiest men in Europe who joined what?
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. His surname is derived from a vowel shift in pronunciation of "d'Allemagne" (English: of Germany), so called by the elites of England because of his father's status as the elected German King of the Romans (the "King of Almayne").
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.