 The Guelders Wars broke out in 1502 over an old, unsettled dispute.At the end of the Second War of the Guelderian Succession (1423–1448), Gerhard VII, Duke of Jülich-Berg sold his claims to the Duchy of Guelders to Philip the Good, Duke of Burgundy.In subsequent years, a long-lastig succession dispute broke out within the Guelders-ruling House of Egmont between Arnold, Duke of Guelders (died 1473) and his son Adolf, Duke of Guelders, which Philip's son Charles the Bold exploited to seize Guelders in 1473.