https://en.wikipedia.org/wiki/Hubert_de_Burgh,_1st_Earl_of_Kent

Hubert de Burgh was born of unknown parents of Burgh-next-Aylsham, Norfolk.[1] A case has been made for Hubert's father being Walter de Burgh,[2] and his mother was named Alice.[1] The family were minor landholders in Norfolk and Suffolk, from whom Hubert inherited at least four manors.[1] His elder brother was William de Burgh (d. 1206), founder of the de Burgh/Burke/Bourke dynasty in Ireland,[1][3] and his younger brothers were Geoffrey (Archdeacon of Norwich and later Bishop of Ely), and Thomas (castellan of Norwich).[1]

FMG Earl of Kent 1227-1243 (Hubert de Burgh)
---. Ellis suggests that the father of Hubert de Burgh was Walter de Burgh, of Burgh-next-Aylsham, Norfolk[767].

m ALICE, daughter of --- (-bur Walsingham). The Complete Peerage quotes a charter, dated to [1230], under which her son Hubert de Burgh donated the advowson of Oulton church, Norfolk to Walsingham for the soul of "Alice my mother who rests in the church of Walsingham"[768].

--- de Burgh & his wife had six children:
-1. WILLIAM de Burgh (-[1205/06).]
-2. HUBERT de Burgh (-Banstead, Surrey 12 May 1243, bur London, Church of the Black Friars[770]).
-3. THOMAS de Burgh (-after 1216).
-4. [son.]
-5. GEOFFROY de Burgh (-1228). Bishop of Ely.
-6. [daughter.]