Sources

1) Source: Exchequer: Treasury of Receipt: Ancient Deeds, Series A "Grant by Roheisia de Duvr' to the canons of Holy Trinity, London, of 10s. yearly that Richard de Luci her grandfather gave them for the soul of Roheisia his wife, her grandmother, who is buried in their church". Dated: Unknown. External Link
https://discovery.nationalarchives.gov.uk/details/r/C4941078. Reference: E 40/2325 (Data from secondary evidence)