Philip I, was the son and successor of Henry I
, King of France
. Philip was born in 1052 and became King upon the death of his father in 1060. He ruled France from 1060–1108, approximately 48 years.
He enlarged his dominion by both warfare and diplomacy. In order to prevent the union of England and Normandy under a single ruler, he consistently supported Robert II of Normandy.
Philip's practice of simony and his constant opposition to the reforms of Pope Gregory VII brought him into conflict with the Holy See. Among the issues were simony and control of marriage policy, an issue fueled by Philip's private life. Philip repudiated his first wife, Bertha, daughter of the Count of Holland, and married, over the opposition of the Roman Catholic Church, Bertrada of Montfort, wife of Count Fulk of Anjou, while both Bertha and Fulk were still living. Philip, excommunicated by popes Urban II and Paschal II, remained defiant until 1104. In his last years his son, Louis VI, ruled for him until his death in 1108.