The Glorious Revolution of 1688 saw William of Orange defeat King James II of England and assume the throne. The conflict was rooted in a longstanding family feud between the Protestant supporters of Parliament and the absolute rule of Catholic monarchs like James II. When James II had a Catholic son and heir, it threatened Protestant rule, so William of Orange invaded with support from English nobles and people dissatisfied with James' policies. James fled to France, and William and Mary became the joint monarchs, legitimized by Parliament and beginning a new constitutional monarchy with the Declaration of Rights limiting royal power.