William II de La Marck

William II de la Marck (Lummen, 1542 – Bishopric of Liège, 1 May 1578) (Dutch: Willem II van der Marck) was the Lord of Lumey and initially admiral of the Watergeuzen, the so-called 'sea beggars' who fought in the Eighty Years' War (1568–1648), together with among others William the Silent, Prince of Orange-Nassau.

He was the great-grandson of an equally notorious character, baron William de la Marck, nicknamed the "wild boar of the Ardennes".

[2] As they sailed towards Brill, they were surprised to find out that the Spanish garrison had left in order to deal with trouble in Utrecht.

[3] A Calvinist, who opposed Catholicism, on 9 July 1572 he had executed the Martyrs of Gorkum, 19 Dutch Catholic priests and religious who were ultimately canonized in 1865.

[5] There is evidence that the earthly remains of William van der Marck are stowed away in a casket, that is bricked up in the Arenberg-family crypt under the former Capuchin Monastery Church at Enghien, today located in Belgium.