Geoffrey FitzGeoffrey de Mandeville, 2nd Earl of Essex and 6th Earl of Gloucester (c. 1191 – 23 February 1216) was an English peer

Peerage

The Peerage is a legal system of largely hereditary titles in the United Kingdom, which constitute the ranks of British nobility and is part of the British honours system...

 and member of the House of Lords

House of Lords

The House of Lords is the upper house of the Parliament of the United Kingdom. Like the House of Commons, it meets in the Palace of Westminster....

. He was an opponent of King John

John of England

John , also known as John Lackland , was King of England from 6 April 1199 until his death...

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He inherited the Earldom of Essex in 1213 from Geoffrey Fitzpeter, 1st Earl of Essex and the Earldom of Gloucester in 1213 from Amaury VI of Montfort-Évreux.

He married as her second husband, Isabel of Gloucester

Isabel of Gloucester

Isabel of Gloucester was the first wife of King John of England. This historical figure is known by an exceptionally large number of alternative names: Hadwisa, Hawisia, Hawise, Joan, Eleanor, Avise and Avisa....

 after her marriage was annulled from John I of England.

He was succeeded by his brother, William FitzGeoffrey de Mandeville, 3rd Earl of Essex

William FitzGeoffrey de Mandeville, 3rd Earl of Essex

William fitz Geoffrey de Mandeville was the third Earl of Essex of the second creation from 1216 to his death. He was the second son of Geoffrey fitz Peter and Beatrice de Say and he succeeded his elder brother Geoffrey fitz Geoffrey as earl and inheritor of the Mandeville barony...

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