When William inherited the Principality, it was incorporated into the holdings of what became the House of Orange. This pitched it into the Protestant side in the Wars of Religion, during which the town was badly damaged. In 1568 the Eighty Years' War began with William as Stadtholder of Holland leading the bid for independence of the Netherlands from Spain. William the Silent was assassinated in Delft in 1584. It was his son, Maurice of Nassau (Prince of Orange after his elder brother died in 1618), with the help of Johan van Oldenbarnevelt, who solidified the independence of the Dutch republic. As an independent enclave within France, Orange became an attractive destination for Protestants and a Huguenot stronghold. William III of Orange, who ruled England as William III of England, was the last Prince of Orange to rule the principality. The principality was captured by the forces of Louis XIV under François Adhémar de Monteil Comte de Grignan, in 1672 during the Franco-Dutch War, and again in August 1682, but William did not concede his claim to rule. In 1702, William III died childless and the right to the principality became a matter of dispute between Frederick I of Prussia and John William Friso of Nassau-Dietz, who both claimed the title 'Prince of Orange'. In 1702 also, Louis XIV of France enfeoffed François Louis, Prince of Conti, a relative of the Châlon dynasty, with the Principality of Orange, so that there were three claimants to the title. Finally in 1713 in the Treaty of Utrecht, Frederick I of Prussia ceded the Principality to France (without surrendering the princely title) in which cession the Holy Roman Empire as suzerain concurred, though John William Friso of Nassau-Dietz, the other claimant to the principality, did not concur. Only in 1732, with the Treaty of Partage, did John William Friso's successor William IV, Prince of Orange, renounce all his claims to the territory, but again (like Frederick I) he did not renounce his claim to the title. In the same treaty an agreement was made between both claimants, stipulating that both houses be allowed to use the title. In 1713, after Orange was officially ceded to France, it became a part of the Province of the Dauphiné. Following the French Revolution of 1789, Orange was absorbed into the French "département" of Drôme in 1790, then Bouches-du-Rhône, then finally Vaucluse.