Simon I de Senlis, Earl of Huntingdon-Northampton

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Simon I de Senlis (or Senliz), 1st Earl of Northampton and 2nd Earl of Huntingdon jure uxoris (died between 1111 (probably 1111 as this is when his castle at Northampton passed to the crown) and 1113) was a Norman nobleman.

In 1098 he was captured during the Vexin campaign of King William Rufus and was subsequently ransomed. He witnessed King Henry I’s charter of liberties issued at his coronation in 1100. He attested royal charters in England from 1100–03, 1106–07, and 1109–011. Sometime in the period, 1093–1100, he and his wife, Maud, founded the Priory of St. Andrew’s, Northampton. He witnessed a grant of King Henry I to Bath Abbey 8 August 1111 at Bishop’s Waltham, as the king was crossing to Normandy. Simon de Senlis, Earl of Northampton and Huntingdon, subsequently went abroad and died at La Charité-sur-Loire, and was buried there in the new priory church. The date of his death is uncertain.

He reportedly built Northampton Castle and the town walls.[1] He also built one of the three remaining Round churches in England, The Holy Sepulchre, Sheep Street, Northampton).


Simon was the third son of Laudri de Senlis, sire of Chantilly and Ermenonville (in Picardy), and his spouse, Ermengarde.[2]

He married in or before 1090 Maud of Huntingdon, daughter of Waltheof, Earl of Northumbria, Northampton, and Huntingdon, by Judith, daughter of Lambert, Count of Lens. They had two sons, Simon II de Senlis, Earl of Huntingdon-Northampton, and Waltheof of Melrose, and one daughter, Maud de Senlis, who married (1st) Robert Fitz Richard (of the De Clare family), of Little Dunmow, Essex.

Following Simon's death, his widow, Maud, married (2nd) around Christmas 1113, David I nicknamed the Saint, who became King of Scots in 1124. David was recognized as Earl of Huntingdon to the exclusion of his step-son, Simon; the earldom of Northampton reverted to the crown. Maud, 2nd Countess of Huntingdon, the Queen of Scots, died in 1130/31.

In popular culture[edit]

He was featured in Alan Moore's book "Voice of the Fire" as the main character of the chapter "Limping to Jersusalem." [3]

Preceded by
Last held by:
Earl of Northampton
Succeeded by
Simon II of St Liz


  1. ^ Northampton Castle
  2. ^ Matthew Strickland, ‘Senlis, Simon (I) de , earl of Northampton and earl of Huntingdon (d. 1111x13)’, Oxford Dictionary of National Biography, Oxford University Press, 2004
  3. ^ Voice Of The Fire