A notable instance of the support of the house of Suasso to the Dutch stadtholders is the loan of two million guilders which Suasso made to William of Orange in 1688 in support of his invasion of England to claim the thrones of King James II. The story is told that William asked Suasso what he wanted as collateral for the millions, to which Suasso replied: "If thou art felicitous, I know thou wilt return them to me; art thou infelicitous, I agree to having lost them." However, this may be apocryphal. Suasso was responsible for a number of elements of the invasion, and through his father-in-law in Hamburg he was able to make speedy arrangements for the transport of Swedish and Pomeranian troops provided in November 1688 by Charles XI of Sweden to assist William. The coffer in which William repaid the loan to Suasso is today on display in the Willet-Holthuisen Museum in Amsterdam.