Guillaume-Robert de La Marck

Guillaume-Robert de La Marck (c. 1563-11 January 1588) was a French Protestant prince, duke and military commander. With the early death of his father Henri-Robert de La Marck in 1574 the 11 year old resided at his families Principality of Sedan under the regency of Françoise de Bourbon-Vendôme [fr]. When the regency expired in 1584 he allowed Sedan to become a nucleus for Protestant forces in their conflict with the Catholic League, leading attacks against Guise at Daigny.

In 1587 Guise counter attacked into the principality, but Bouillon decided to leave it under the regency of his sister, and went off to lead mercenary forces in Alsace for Navarre, losing the Battle of Vimory to Guise in late 1587. Having had little military success he retreated into Switzerland where he died in January 1588. Lacking children, his titles and territories were inherited by his sister, who married Turenne thus ending the La Marck control of Bouillon and the Principality of Sedan.