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Geoffrey de Geneville, 1st Baron Geneville

Geoffrey de Geneville
1st Baron Geneville
Trim Castle, home to Geoffrey de Geneville
Heir Roger Mortimer and Joan
Wife Maud de Lacy, Baroness Geneville (12521304)
Issue
Geoffrey, Peter
Father Simon de Joinville
Mother Beatrix d'Auxonne
Born c.1226
Champagne
Died 21 October 1314
Trim, County Meath
Buried The Black Friary, Trim
Religion Roman Catholic

Geoffrey de Geneville, 1st Baron Geneville (1225/33 – 21 October 1314) also known as Geoffrey de Joinville, was an Anglo-French noble, supporter of Henry III, who appointed him Baron of Trim, County Meath, and, subsequently, a staunch supporter of Edward I.

Geoffrey was Seigneur of Vaucouleurs in Champagne, second son of Simon de Joinville and Beatrix d'Auxonne and younger brother of Jean de Joinville. Geoffrey's half-sister was wife to one of Eleanor of Provence's uncles, Peter of Savoy, earl of Richmond. Geoffrey was thus one of the "Savoyards" who arrived in England in the retinue of Eleanor at the time of her marriage to King Henry III in 1236.

Some time between 1249 and 8 August 1252, Henry III arranged Geoffrey's marriage to Maud (or 'Mathilda') de Lacy, widow of another Savoyard, Pierre de Genève, himself also a relative of Queen Eleanor, who had died in 1249. Maud had been co-heiress to vast estates and lordships in Ireland, Herefordshire, and the Welsh Marches, and the marriage is considered typical of Henry's 'policy' of appointing such 'aliens' to retain control of the outlying regions of the kingdom. Geoffrey thus came to control vast estates in Ireland centred at Trim, the Welsh borders at Ludlow, Ewyas Lacy and others in England. Maud and Geoffrey had at least four sons, Geoffrey, Simon, William and Peter ('Piers').

Geoffrey was both a military figure and political negotiator. He successfully pacified the Irish pro-Montfort and Royalist barons at this time that assisted the future Edward I's success at Evesham. In 1267 he assisted Henry III with negotiations with Llywelyn ap Gruffudd, the year of the Treaty of Montgomery. With another of his brothers, William, he accompanied Edward on the Eighth Crusade in 1270, fought in Welsh Wars, and went on diplomatic missions to Paris. He served as justiciar of Ireland from 1273 to 1276 but had little success against the Leinster Irish, being heavily defeated in 1274 and 1276. In 1280 he acted as Edward's envoy in Paris and to the papal curia, a mission repeated ten years later in 1290.


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