- Peter Petersen
- Duke Henry Beaufort
Birth - April 1436 (31 year anniversary) - , London, London, England - Isabel Plantagenet
Death - about April 1402 (65 year anniversary) - UNMD - Cort Moltke
- Countess Anne Plantagenet
Birth - April 1383 (84 year anniversary) - Of, Pheshy, Essex, England - Duke Humphrey Plantagenet
Birth - April 1382 (85 year anniversary) - Of, Pleshey, Essex, England - Sibella Bodrugan
Death - April 1349 (118 year anniversary) - , Burford, Shropshire, England - Thomas Iii de Berkeley
Death - before April 1346 (121 year anniversary) - Probably Coston, Wymondham, Leicestershire, England - John Howard
- Gilbert de Haya
- Konstanze Von Hohenstaufen
Death - April 1307 (160 year anniversary) - Valencia, Valencia, Spain - William Mauduit
- Simon Seigneur de Joinville
- Godefroy d'Avesnes I Carpentier
Birth - April 1218 (249 year anniversary) - Selles Cambrai, Du Nord, France - Jean I D' Avesnes
Birth - April 1218 (249 year anniversary) - , Etroent, , LUXEMBOURG - Hamelin Plantagenet
Death - April 1202 (265 year anniversary) - , , , England - William Prince Of England
Death - April 1156 (311 year anniversary) - Wallingford Cast, Wallingford, Berkshire, England - Geoffroi Viscount de Thouars (Tours)
Death - April 1043 (424 year anniversary) - St Michael En Lh, Leon, Spain - Ethelred I Wessex
- Pippin (Carloman), King Of ITALY Italy
Birth - April 773 (694 year anniversary) - Of Aachen, Rhineland, Prussia - Grimoald der Jüngere
Death - April 714 (753 year anniversary) - Kirche St. Lambert in Lüttich - Robert de Clifford
Birth - 1 April 1274 (193 year anniversary) - Castle, CLIFFORD, Herefordshire, England - Petronilla (Pernel) Grentmesnil
Death - 1 April 1212 (255 year anniversary) - Leicester, Leicestershire, England - Hildegarde, Countess Of Anjou
Death - 1 April 1046 (421 year anniversary) - , Jerusalem, Palastein - Geoffroy Ii "Ferreol" Count Of Gastinois
Death - 1 April 1046 (421 year anniversary) - , , ANJOU, France - Christina von Sachsen
Death - 1 April 919 (548 year anniversary) - Gandersheim
| - Aubrey de Vere + Anne Stafford
- James Butler + Eleanor Beaufort
Marriage - about April 1458 (9 year anniversary) - possibly, Woodsford, Dorsetshire, England - Richard Poynings + Alianore Berkeley
Marriage - after April 1421 (46 year anniversary) - Of, Beverstone, Gloucestershire, England - Sir William Cheney + Catherine Pabenham
Marriage - after April 1418 (49 year anniversary) - Of, Pavenham, Bedfordshire, England - Earl Thomas De Beauchamp + Margaret Ferrers
Marriage - before April 1381 (86 year anniversary) - Warwick Castle, Warwickshire, England - Pedro I Alfonsez De Castilla y León + Juana de Castro
Marriage - April 1354 (113 year anniversary) - , Cuellar, Segovia, Spain - Robert de Clifford + Baroness Euphemia De Neville
Marriage - April 1343 (124 year anniversary) - , Raby, Durham, England - Charles Ii "Magnanime" Valois + Jeanne, Countess Of Joigny
- William Mauduit + Alice de Newburg
- William de Forz (Fortibus) + Christian de Galloway
Marriage - before April 1236 (231 year anniversary) - Humphrey de Bohun + Margaret Princess Of Scotland
Marriage - before April 1175 (292 year anniversary) - England ? - Baudouin Viii (V), Count Of Flanders & Hainault + Marguerite de Lorraine
- Hamelin Plantagenet + Isabel de Warenne
Marriage - April 1164 (303 year anniversary) - E. Surry., Eng. - Miles Of Gloucester + Sybil de Neufmarche
Marriage - April 1121 (346 year anniversary) - OR May - Louis Vi, "Louis The Fat" France + Alix (Adelaide) Countess Savoy
Marriage - April 1115 (352 year anniversary) - , Paris, Seine, France - Alexander Robertson + Elizabeth Lyon
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