Family: 1st Earl of March Roger De Mortimer / Countess Of March Joan de Geneville (F7227)
m. 20 Sep 1301
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Male
1st Earl of March Roger De Mortimer
Birth 25 Apr 1287 Herefordshire, England 
Christening 3 May 1287 Herefordshire, England Death 29 Nov 1330 Cumberland, England Burial Nov 1330 Herefordshire, England Marriage 20 Sep 1301 Herefordshire, England Father Roger De Mortimer | F1051 Group Sheet Mother Maud De Braose | F1051 Group Sheet
Female
Countess Of March Joan de Geneville
Birth 2 Feb 1286 Shopshire, England Death 19 Oct 1356 Gloucestershire, England Burial Oct 1356 Herefordshire, England Father Baron Of March Ulster Piers De Geneville | F960 Group Sheet Mother Joan Lusignan De Marche | F960 Group Sheet
Male
+ 3rd Lord Mortimer Edmund De Mortimer
Birth Abt 1303 Herefordshire, England Death 16 Dec 1331 Shopshire, England Burial Spouse Countess Of Northampton Elizabeth De Badlesmere | F4551 Marriage 27 Jun 1326 Shopshire, England
Female
+ Margaret Mortimer
Birth 2 May 1304 Gloucestershire, England Death 5 May 1337 Gloucestershire, England Burial Gloucestershire, England Spouse 3rd Baron Berkeley Thomas De Berkeley | F825 Marriage 10 May 1319 Gloucestershire, England
Female
+ Maud Mortimer
Birth 1307 Herefordshire, England Death Aft 1345 Herefordshire, England Burial Spouse John Cherleton | F7228 Marriage 1329 Yorkshire, England
Female
+ Blanche De Mortimer
Birth 1313 Herefordshire, England Christening 1316 Death 1347 Herefordshire, England Burial 1347 Herefordshire, England Spouse Second Baron Grandison Peter De Grandison | F24082 Marriage Bef 20 Jun 1330 Herefordshire, England
Female
+ Countess Of Warwick Katherine Mortimer
Birth Abt 1325 Shopshire, England Death 4 Aug 1369 Warwickshire, England Burial 6 Sep 1369 Warwickshire, England Spouse 11th Earl Of Warwick Thomas De Beauchamp | F1242 Marriage 1334 Warwickshire, England