* Arnulf of Montgomery, Anglo-Norman aristocrat ( b. 1068 )

* Arnulf of Montgomery, married Lafracota daughter of Muirchertach Ua Briain.

Arnulf of Montgomery ( c. 1068 – 1118 / 1122 ) was an Anglo-Norman aristocrat, who played a role in the history of England, Wales, and Ireland.

It is likely that Arnulf had been designated heir of his brother Hugh of Montgomery, 2nd Earl of Shrewsbury, but after Hugh's death in 1098 Arnulf was outmaneouvered by their eldest brother, Robert of Belleme, 3rd earl of Shrewsbury.

Arnulf turned his attention to Ireland, where, prior to the Montgomery rebellion, he had sent Gerald de Windsor to secure for him the hand in marriage of Lafracoth, daughter of the Irish king Muircheartach Ua Briain ; by 1102, Arnulf was mentioned by Muirchertach as his son-in-law in a letter to the Archbishop of Canterbury Anselm of Bec.

de: Arnulf de Montgomery

Robert de Bellême, his brother Hugh de Montgomery and a third brother, either Roger or Arnulf, participated in this rebellion.

Robert de Bellême was one of the great magnates who joined Robert Curthose's 1101 invasion of England, along with his brothers Roger the Poitevin and Arnulf of Montgomery and his nephew William, Count of Mortain.

Gerald was made castellan of Pembroke Castle by Arnulf of Montgomery in the first Norman invasion of Pembrokeshire.

Nest's brother Gruffydd was spirited into Ireland for safety ; their brother Hywel was captured by Arnulf de Montgomery.

Some time after the rebellion of the powerful Montgomery clan of Normandy and England, King Henry married Nest to Gerald de Windsor, Arnulf de Montgomery's former constable for Pembroke Castle and one of the recent Montgomery rebels.

The two eldest sons married two daughters of Arnulf of Montgomery.

In an effort to gain military support against Henry I, Arnulf de Montgomery sent his steward, Gerald of Windsor, to Ireland to negotiate terms with Muirchertach.

The Montgomery brothers fought under Muirchertach during his campaign with Magnus Barelegs, but when de Montgomery attempted to seize the kingship for himself, Muirchertach " took his daughter away from Arnulf and gave the wanton girl in an unlawful marriage to one of his cousins.

Despite their checkered relationship, some sources list Lafracoth, the daughter of Muirchertach, as the mother of two daughters by Arnulf, Alice de Montgomery and Marie de Montgomery.

Hugh of Montgomery, 2nd Earl of Shrewsbury ( died 1098 ) was an Anglo-Norman aristocrat and member of the House of Bellême.

Robert de Bellême (– after 1130 ), Seigneur de Bellême ( or Belèsme ), Seigneur de Montgomery, viscount of the Hiémois, 3rd Earl of Shrewsbury and Count of Ponthieu, was an Anglo-Norman nobleman, and one of the most prominent figures in the competition for the succession to England and Normandy between the sons of William the Conqueror.

He was an Anglo-Norman aristocrat, who possessed large holdings in both England and through his marriage in France.