- Margaret Atherton
Birth - 30 April 1638 (11 year anniversary) - Dorchester, Suffolk, Mass. - Mary Wales
Birth - 30 April 1630 (19 year anniversary) - Winwick, Lancashire, England - Abigail Olga Jaffe
- Katherine Heneage
Birth - 30 April 1588 (61 year anniversary) - Of, London, Middlesex, England - Georg Jürgen Beyer
- Gertrude Courtenay
Death - 30 April 1566 (83 year anniversary) - ., Raleigh, Devonshire, England - Henry Stafford
Death - 30 April 1563 (86 year anniversary) - Caus Castle, , Shropshire, England - Cecilia Daubeney
- John Bourchier
Death - 30 April 1539 (110 year anniversary) - Baunton, Devonshire, England - Christian Lyon
- Agnes Lyon
- Joan (Jane) Brereton
- Earl Richard De Beauchamp
Death - 30 April 1439 (210 year anniversary) - , Rouen, Seine-Maritime, France - Brian de Windsor
- John de Marmion
- Otto I Count Gelre
- Hildegard, Empress Of The HOLY ROMAN EMPIRE Holy Roman Empire
Death - 30 April 783 (866 year anniversary) - , Thionville, MOSELLE, France - Hildegard von Anglachgau
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