- Søren Christensen Lemvig
Birth - 20 April 1709 (9 year anniversary) - København, Hovedstaden, Danmark - Søren Christensen Lemvig
Birth - 20 April 1709 (9 year anniversary) - København, Hovedstaden, Danmark - Johann Wilhelm Brass
- Nathan Upham
- August Friedrich Eckermann
Birth - 20 April 1696 (22 year anniversary) - Neverstorf, Germany - Ammiel Weekes
Death - 20 April 1679 (39 year anniversary) - Dorchester, Suffolk, MA - Randolf de Dacre
- Robert de Ross
- Richard "Strongbow" Fitzgilbert Clare
Death - 20 April 1176 (542 year anniversary) - , Dublin, Leinster, Ireland
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