- Thomas Mayo
Birth - 11 April 1619 (4 year anniversary) - Cattistock, Dorset, England - Constantine Darrel
- Cardinal Henry Beaufort
Death - 11 April 1447 (176 year anniversary) - , Winchester, Hampshire, England - Geofrey Scrope
- Roger de Mortimer
Birth - 11 April 1374 (249 year anniversary) - , Usk, Monmouthshire, England - Llewelyn Ap Iorwerth
Death - 11 April 1240 (383 year anniversary) - Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales - William Marshall
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