Geoffrey de Gresley (d. after 1240)

✓ Geoffrey de Gresley (Madan gen. iv), son of William and Basilia; served King John against the barons and was made Castellan (Constable) of the Peak 1216, still holding it 1217 and 1229; last found 19 June 1240. His seal (Gresley Charter 40) bears 'vaire' - the first known Gresley arms. m. 1st (before Easter 1220) Margery de Somervile, mother of William (our line) and of Agnes, prioress of Grace Dieu; married twice. Source: Falconer Madan, The Gresleys of Drakelowe (Oxford, 1899; archive.org The_Gresleys_of_Drakelowe), chs. II-III and pedigrees, from the Gresley Chartulary, Gresley Charters, Liber Niger and Salt Society records; read 2 Nov 2026. [DIRECT ANCESTOR OF THE COMPILER: flag added 2 Nov 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]