Family: Sir Willem Cowper, 2nd Baronet of Ratling and Hertford Castle / Sarah Holled (F863)
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Male
Sir Willem Cowper, 2nd Baronet of Ratling and Hertford Castle
Birth 1639 Rattlinge Court, Kent, England 
Death 26 Nov 1706 St Michaels, Cornhill, London, England Burial Marriage Father Sir John Cowper | F857 Group Sheet Mother Martha Hewkley | F857 Group Sheet
Female
Sarah Holled
Birth 14 Feb 1644 St Clements, London, England Death 3 Feb 1720 Hertingfordbury, Hertfordshire Burial Father Samuell Holled | F1565 Group Sheet Mother
Male
Spencer Cowper
Birth 23 Feb 1670 Hertford Castle, Hertfordshire, England Death 10 Dec 1728 Lincoln's Inn, London, England Burial Spouse Pennington Goodeve | F850 Marriage