- Thomas "Tad" Lincoln
Birth - 4 April 1853 (6 year anniversary) - Springfield, Sangamon, IL - Jeremiah Mason
Death - 4 April 1848 (11 year anniversary) - Swansea, Bristol, Massachusetts - Johann Friedrich Prehn
- Jacob Iii Iler
Death - 4 April 1843 (16 year anniversary) - So. Colchester, Essx, ON - Carl Forsstrom
Death - 4 April 1816 (43 year anniversary) - Foss, Goteborg, Bohus, Sweden - Seth Bullock
Death - 4 April 1789 (70 year anniversary) - Rehobeth, Bristol, Mass. - Hans Andersson
- Johann Heinrich Eckermann
Birth - 4 April 1769 (90 year anniversary) - Neuenfelde, Lauenburg, Germany - John Thompson
- Hezekiah Mason
Death - 4 April 1738 (121 year anniversary) - Rehobeth, Bristol, MA - Nathan Bowen
Birth - 4 April 1698 (161 year anniversary) - Rehoboth, Bristol, Mass - Daniel Hovey
- James Fisher
- Samuel Abraham Ballin
- Earl Henry Bourchier
- Robert de Neville
- Robert Iii (John Scotland
Death - 4 April 1406 (453 year anniversary) - Rothsay Castle, Dundonald, Ayrshire, Scotland - Robert de Brus
Death - before 4 April 1304 (555 year anniversary) - , , , Palestine - King Alfonso X De Castilla y León
Death - 4 April 1284 (575 year anniversary) - , Sevilla, Sevilla, Spain - Maurice "The Resolute" Berkeley
- Robert de Toeni
- Alfonso II Raimundez Rei de Aragon y Pamplon
Birth - 4 April 1152 (707 year anniversary) - Villa Mayor De Valle, ARAGON, Spain - Gerhard Iii (IV), Duke Of Upper Lorraine
Death - 4 April 1070 (789 year anniversary) - , Remiremont, Vosges, France
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