A manuscript document narrating the foundation of Newenham Priory names “Paganus de Bello-campo” as its founder, his wife “Roisia”, and their son “Simon de Bello-campo”. The Red Book of the Exchequer refers to "Simon de Bello Campo xxxvi l et in perdonis Hugoni de Bello Campo xxxi s" in Buckinghamshire, Bedfordshire in [1161/62]. Military fee certifications in the Red Book of the Exchequer, in 1166, record the knights’ fees held from "Simonis de Bello Campo" in Bedfordshire. William Earl of Essex confirmed the donation of "villa de Kahingeham" to "Ernulfo de Mandavilla fratri meo" by undated charter, witnessed by "Comite Albrico, Simone de Bellocampo, Gaufrido de Say…". A charter of King Henry II confirmed donations to Newenham Priory, including a donation by “Simon de Bello-campo”. "Willelmus comes de Essex" confirmed a donation of land in Aby and South Thoresby donated by "Willelmus filius Otueli avunculus meus" to Greenfield priory, Lincolnshire by charter dated to [1166/75] witnessed by "Simone de Bello Campo…". The Red Book of the Exchequer refers to "Simon de Bello Campo xlv l xv s viii d" in Buckinghamshire, Bedfordshire in [1171/72]. "…Simone de Bello Campo…" subscribed the charter dated to [1179] under which Henry II King of England confirmed a donation by "Robertus de Fay" to "comiti Willelmo de Maundevilla". "Sim d Bell Capo" and Cormeilles abbey are named in a lawsuit about "loco suo Laur" in Worcestershire in 1194. The Red Book of the Exchequer, listing scutage payments in [1194/95], names "Simon de Bello Campo" paying "xlv l xv s viii d" in Buckinghamshire, Bedfordshire.
Married Isabella, daughter of ----. “Willielmus de Bellocampo, filius Simonis de Bellocampo” confirmed his father’s donations to Chicksand priory, for the souls of “patris mei Simonis…et matris meæ Isabellæ et uxoris meæ Gunnoræ et fratrum…meorum”, by undated charter. 1