 In 1487, Lambert Simnel initially claimed to be Richard, Duke of York, but later claimed to be Edward Plantagenet, 17th Earl of Warwick.From 1491 until his capture in 1497, Perkin Warbeck claimed to be Richard, Duke of York, having supposedly escaped to Flanders.Warbeck's claim was supported by some contemporaries (including the aunt of the disappeared princes, Margaret of York).