His uncle Philip of Swabia moved to secure Frederick's inheritance by appointing Markward von Anweiler, margrave of Ancona, regent in 1198.

Her uncle Philip of Swabia, German king since 1198, had ensured her Burgundian heritage.

His revenues were held for him until he came of age by three trustees, Marie herself, her father, and her uncle Philip the Bold, Duke of Burgundy.

Henry had himself crowned King of Jerusalem there on 15 August 1286, but returned to Cyprus and appointed his uncle Philip of Ibelin as Bailiff in his absence.

He opened bureaus, hired superior editors and reporters and printed investigative pieces like an exposé of the John Birch Society (even though his uncle Philip was a member).

Baldwin's own family had also been involved in the defence of Jerusalem: his uncle Philip had died on Crusade.

He was brought up and educated by his uncle Philip the Good, Duke of Burgundy, who let him study for ten years at the University of Leuven.

The reason for the early coronation was as a political maneuver by his uncle Philip, who sensed that Frederick II, Holy Roman Emperor, was going to attempt to seize power.

Thomas III married in 1274 to Guia of Burgundy, the stepdaughter of his uncle Philip I of Savoy and they had five children:

Thomas III predeceased his uncle Philip.