Family: Henry, of Grosmont, 1st Duke of Lancaster / Isabel DE BEAUMONT, Duchess of Lancaster (F3838)
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Male
Henry, of Grosmont, 1st Duke of Lancaster
Birth Abt 1310 Grosmont Castle, Grosmont, Monmouthshire, England 
Death 23 Mar 1361 Leicester Castle, Leicestershire, England Burial 14 Apr 1361 Church of the Annunciation of Our Lady of the Newarke, Leicester, Leicestershire, England Marriage Father Henry PLANTAGENET, 3rd Earl of Lancaster | F3827 Group Sheet Mother Maud DE CHAWORTH | F3827 Group Sheet
Female
Isabel DE BEAUMONT, Duchess of Lancaster
Birth Abt 1320 Death 1361 Burial Father Henry DE BEAUMONT | F3839 Group Sheet Mother
Female
+ Blanche, of Lancaster
Birth Est 25 Mar 1345 Death 12 Sep 1368 Burial Spouse John, of Gaunt, 1st Duke of Lancaster | F3840 Marriage
