- Peder Charisius
- William Clapp
Death - 20 May 1555 (86 year anniversary) - Hartford, Devonshire, England - Rabbi Abraham HaLevi Minz
Death - 20 May 1530 (111 year anniversary) - Padua, Italien - Baron Henry "Hotspur" De Percy
Birth - 20 May 1364 (277 year anniversary) - , Alnwick, NORTHUMBERLAND, England - Robert Clifford
- Maurice Fitzgerald
Death - 20 May 1257 (384 year anniversary) - , Youghal Monaster, , Ireland - Helgi "Magri" Eyvindsson
Death - 20 May 908 (733 year anniversary) - , , Eyjafjardar, Iceland
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