Katherine Strickland 1410–… | | |
| | Sir Walter Strickland 1411–1467 | | |
Cecelia de Strickland 1415–… | | |
Margaret Strickland 1417–… | | |
| | Sir Thomas de Strickland 1369–1455 | | |
| | John de Beetham 1367–1420 | | |
| | Robert de Beetham 1345–1379 | | |
| | Ralph de Beetham 1321–1370 | | | | | | | | | Lord Robert de Beetham 1265–… | | | | Lord Thomas de Beetham 1238–1314 | | | | Sir Ralph de Beetham 1215–1238 | | |
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