He married a wealthy heiress from North Cadbury in Somerset which transformed him into a major landholder and feudal baron.
[2] His surname appears to derive from the Norman manor of Meulles in Calvados, south-west of Orbec, in the Diocese of Lisieux.
[2] Devonshire historian Tristram Risdon (d. 1640) stated that he "descended of an ancient lineage in this shire" but provided no further detail.
[10] The contemporary Benedictine monk Matthew Paris wrote as follows concerning events in 1243: Which may be translated as follows: In September 1243, Henry III left Gascony to return to England, having on 17 June 1243 appointed Nicholas de Moels as Seneschal of Gascony, as related by Matthew Paris in his Chronica Majora,[c] with a marginal illustration of the King and Queen on board a ship with a man in a small boat alongside, apparently de Moels seeing him off.
[d] The Latin text following the illustration is as follows: Translated as: In 1244, de Moels inflicted a defeat on Theobald I, King of Navarre, capturing him in person on a battlefield in Gascony, according to the Devonshire historian Tristram Risdon (d.
He was made Constable of Dover Castle in 1246, Sheriff of Kent in 1247 and Lord Warden of the Cinque Ports in 1258.