[3] In 1236, his brother William was able to use his influence with Henry III of England to get Philip positions in the churches of Hillingdon, Oxney, and Geddington.

His brother Thomas had Philip installed as chancellor of Flanders and prévôt of St-Donatien-de-Bruges.

Philip escorted the Pope to Lyon, and then remained with him to ensure his safety.

In 1248 he negotiated with Aymar III of Valentinois to reduce the taxes that traders would pay on foods travelling through his lands, and over the next few years, he granted charters to towns throughout the area.

[8] When, against expectations, Philip became the next heir for the County of Savoy, he gave his church offices up and married Countess Adelaide of Burgundy, on 12 June 1267.