[1] While the words in his name do literally mean "Walter without having", the name actually derives from that of his demesne (and, ultimately, the motto of his family), Sans avoir Peur ("Fearless").
Leaving well before the main army of knights and their followers (the more famous "Princes' Crusade"), Walter led his small group of knights at the head of a mass of poorly-armed pilgrims through the Holy Roman Empire, the Kingdom of Hungary and the Syrmian and Bulgarian provinces of the Eastern Roman Empire, traveling separately from Peter.
They passed through Germany and Hungary uneventfully, but Walter's followers plundered the Belgrade area, drawing reprisals upon themselves.
Walter and Peter joined forces at Constantinople where Alexius I Comnenus provided transport across the Bosporus.
Peter had returned to Constantinople, either for reinforcements or to protect himself, but Walter was killed, allegedly pierced by seven arrows[3] on 21 October 1096 when the Seljuk leader Kilij Arslan attacked him and his followers in the battle of Civetot.