Joan de Grey was born July 1386 to Robert de Grey, 5th Baron Grey of Rotherfield (1349-1387) and Elizabeth de la Plaunche (c1358-?) and died 20 November 1408 of unspecified causes. Notable ancestors include Hugh Capet (c940-996), Charlemagne (747-814), Rurik (c832-879), Henry II of England (1133-1189), William I of England (1027-1087), Alfred the Great (849-899). Ancestors are from the United Kingdom, France, Germany, Russia, Ukraine, England, Belgium, Netherlands, Spain, Portugal, Italy.
|Offspring of Joan Grey and John Deincourt, 5th Baron Deincourt (1381-1406)|
|Alice Deincourt (?-?)|| William Lovel, 7th Baron Lovel of Tichmerch (-1454)|
|Margaret Deincourt (?-?)|| |
|William Deincourt, 6th Baron Deincourt (?-?)|
|Offspring of Robert de Grey, 5th Baron Grey of Rotherfield and Elizabeth de la Plaunche (c1358-?)|
|Joan de Grey (1386-1408)||July 1386||20 November 1408|| John Deincourt, 5th Baron Deincourt (1381-1406)|
- William Allen Shade 22:44, September 13, 2009 (UTC)