Sampford Peverell in the Domesday Book
Sampford, or Sanforda (it became Sampford Peverell later when it belonged to the Peverell family) is included in the Exon Domesday book. The Exon Domesday was one of the many local surveys undertaken in 1086, which were used to compile the national Domesday Book. The Exon Domesday is the only one of these surveys to survive, and on a visit to the Exeter Cathedral Archives in October 2017 a group from the Sampford Peverell Society was lucky enough to be shown the page about the village. This is a photo of it, with the Exeter Cathedral Archives' translation:
The following information about Roger of Bully comes from Wikipedia:
Roger de Busli was born in or around 1038. His surname comes from the town now known as Bully (near Neufchâtel-en-Bray) mentioned as Buslei ar. 1060, or Busli 12th century, in Normandy, and he was likely born there. Busli was given lands in Nottinghamshire, Derbyshire and Yorkshire, which had previously belonged to a variety of Anglo-Saxons. Much of the de Busli's family's leverage came from their familial relationships with the crown through the Counts of Eu. Roger de Busli's wife Muriel was in favour with the queen, to whom she was probably a lady-in-waiting or a kinswoman, evident in the queen's grant to de Busli of the manor of Sandford (ie Sampford Peverell) upon his marriage. The de Buslis had one son, also called Roger, who died as an infant, thus leaving no heirs. His daughter (or possibly his sister) Beatrix, (also known as Beatrice de Builli), married William, Count of Eu.De Busli died in the last years of the 11th century without an heir. His lands were given to Robert de Bellême, who lost them in 1102 after he led a rebellion against Henry 1. Ernulf de Busli, probably Roger's brother, may then have inherited some of the lands; these were then passed to Ernulf's son Jordan and grandson Richard de Busli. The male line of the de Busli family died out in 1213, and their holdings passed into the Vipont family through the marriage of Idonea de Busli with Robert de Vipont (Vieuxpont).
Roger de Busli was born in or around 1038. His surname comes from the town now known as Bully (near Neufchâtel-en-Bray) mentioned as Buslei ar. 1060, or Busli 12th century, in Normandy, and he was likely born there. Busli was given lands in Nottinghamshire, Derbyshire and Yorkshire, which had previously belonged to a variety of Anglo-Saxons. Much of the de Busli's family's leverage came from their familial relationships with the crown through the Counts of Eu. Roger de Busli's wife Muriel was in favour with the queen, to whom she was probably a lady-in-waiting or a kinswoman, evident in the queen's grant to de Busli of the manor of Sandford (ie Sampford Peverell) upon his marriage. The de Buslis had one son, also called Roger, who died as an infant, thus leaving no heirs. His daughter (or possibly his sister) Beatrix, (also known as Beatrice de Builli), married William, Count of Eu.De Busli died in the last years of the 11th century without an heir. His lands were given to Robert de Bellême, who lost them in 1102 after he led a rebellion against Henry 1. Ernulf de Busli, probably Roger's brother, may then have inherited some of the lands; these were then passed to Ernulf's son Jordan and grandson Richard de Busli. The male line of the de Busli family died out in 1213, and their holdings passed into the Vipont family through the marriage of Idonea de Busli with Robert de Vipont (Vieuxpont).
This is the reference to Sampford in the national Domesday Book of 1086, with the translation below it. The page image and a fuller explanation can be seen on:
https://opendomesday.org/place/ST0314/sampford-peverell/
https://opendomesday.org/place/ST0314/sampford-peverell/