| Birth | 1394 | Raglan, Monmouthshire, Wales | | | |
| Marriage | Abt 1412 | Gloucestershire, England - Isabel DE MOWBRAY | | | |
| Title of Nobility | 1418 | 1st Baron Berkeley | | | |
| Death | 22 Oct 1463 | Berkeley, Gloucestershire, England, United Kingdom | | | |
| Burial | 22 Nov 1463 | Berkeley, Gloucestershire, England, United Kingdom | | | |
| Title (Nobility) | | 1st Baron Berkeley | | | |
| Find A Grave | | https://www.findagrave.com/memorial/107572104/james-berkeley | | | |
| Fact | | https://en.wikipedia.org/wiki/James_Berkeley,_1st_Baron_Berkeley | | | |
| Fact | | https://www.geni.com/people/James-de-Berkeley-The-Just-1st-Baron-Berkeley/6000000000777855127 | | | |
| Title of Nobility | | Baron of Berkeley - Berkeley, Gloucestershire, England, United Kingdom | | | |