Philip married Queen Joan I of Navarre (1271–1305) on 16 August 1284. The two were affectionate and devoted to each other and Philip refused to remarry after Joan's death in 1305, despite the great political and financial rewards of doing so. The primary administrative benefit of the marriage was Joan's inheritance of Champagne and Brie, which were adjacent to the royal demesne in Ile-de-France, and thus effectively were united to the king's own lands, expanding his realm. The annexation of wealthy Champagne increased the royal revenues considerably, removed the autonomy of a large semi-independent fief and expanded royal territory eastward. Philip also gained Lyon for France in 1312.