William de Mandeville, 3rd Earl of Essex

William de Mandeville, 3rd Earl of Essex († November 14, 1189 ) was a loyal advisor of the English kings Henry II and Richard I..

He was the second son of Geoffrey de Mandeville, 1st Earl of Essex (House Mandeville ) and Rohese de Vere. After the rebellion and death of his father William grew up at the court of the Count of Flanders. With the death of his elder brother Geoffrey in 1166 he became Earl of Essex, and returned to England, where he spent much time at the court of Henry II.

1177 he moved together with a childhood friend, Philip of Flanders, on a crusade to the Holy Land. Philip was offered to take over the regency in the Kingdom of Jerusalem, but this declined. Instead, they participated in the siege of Harim for the Principality of Antioch. William returned to England in the autumn of 1178.

January 14, 1180 he married Hawise, daughter and heiress of William, Count of Aumale, who had died the year before. He thus got access to their country both in England and Normandy, and the title of Count of Aumale ( Earl of Albemarle, or as it is sometimes called ).

William fought in the wars of Henry II led to the end of his life in France, and accompanied the king in his last days 1189th At the coronation of Richard I. he held the crown, and also retained his place at the new yard. Richard appointed him to one of two Chief Justiciars of England. William died a few months later in Normandy.

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