IPM of Robert de Holond or de Holand Calendar of inquisitions post mortem and other analogous documents preserved in the Public Record Office by Great Britain. Public Record Office; Kirby, J. L. (John Lavan); White, Andrew Dickson, 1832-1918. fmo Publication date 1904 p 122.https://archive.org/details/cu31924011387853/page/121/mode/1up