Family: William Robert Williamson, II / Lady Mary Robertson (F10530)
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Male
William Robert Williamson, II
Birth 1403 Herefordshire, England 
Death 1482 Herefordshire, England Burial Marriage Father William Robert Williamson | F9656 Group Sheet Mother Agnes Williamson | F9656 Group Sheet
Female
Lady Mary Robertson
Birth 1410 Lincolnshire, England Death Yes, date unknown Burial Father Mother
Male
+ John Henry Williamson
Birth 1430 Dorsetshire, England Death 1488 London, England Burial Spouse Lady Anne Haddle | F11206 Marriage
Male
+ Alexander Williamson
Birth 1435 Lincolnshire, England Death 22 May 1503 Lincolnshire, England Burial Spouse Alice Blount | F20846 Marriage