Family: Donald Earl Of Mar / Elen (Helen) Verch Llewelyn, [Countess Of Che (F1253)
m. Abt 1269William, Earl Of Mar (1222-1281) 
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Elizabeth Comyn (1223-1267)
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| Llewelyn Ap Iorwerth, [Prince Of Wales (1173-1240)
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| Joan Princess Of England, [Princess Of Wal (1188-1237)
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Gwenllian "Las" Verch Llywelyn (1207- )  |
| Dafydd Ap Llywelyn, [Prince Of Wales (1209-1246) |
| Margred Verch Llywelyn, [Princess Of Nor (1210-1264) |
| Angharad Verch Llywelyn (1212- ) |
| Miss Verch Llywelyn (1214- ) |
| Donald Earl Of Mar (1243-1297)
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| Elen (Helen) Verch Llewelyn, [Countess Of Che (1206-1253)
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| Marjory (Margaret) Of Mar, [Countess Of Ath (1270-1326) |
| Gratney (Gartnet) Earl Mar (1272-1305) |
| Duncan Of Mar (1274- ) |
| Alexander Of Mar (1276- ) |
| Isabell (Matilda) Of Mar, [Queen Of Scotla (1278-1320) |
| Mary Of Mar (1280- ) |