Great Helm with a Tournament crest, c. 1430 The Helm is that of Henry V, and the crest is a speculation of what his royal crest would look like. It is actually based on the helm crest of the Black Prince. This helm was made in 2002, for the tomb of Prince Arthur (son of Henry VII) in Worcester Cathedral in England, as part of the 500th anniversary celebration of his death in 1502.