- Isabel Plantagenet
Death - about April 1402 (3 year anniversary) - UNMD - Cort Moltke
- Countess Anne Plantagenet
Birth - April 1383 (22 year anniversary) - Of, Pheshy, Essex, England - Duke Humphrey Plantagenet
Birth - April 1382 (23 year anniversary) - Of, Pleshey, Essex, England - Sibella Bodrugan
Death - April 1349 (56 year anniversary) - , Burford, Shropshire, England - Thomas Iii de Berkeley
Death - before April 1346 (59 year anniversary) - Probably Coston, Wymondham, Leicestershire, England - John Howard
- Gilbert de Haya
- Konstanze Von Hohenstaufen
Death - April 1307 (98 year anniversary) - Valencia, Valencia, Spain - William Mauduit
- Simon Seigneur de Joinville
- Godefroy d'Avesnes I Carpentier
Birth - April 1218 (187 year anniversary) - Selles Cambrai, Du Nord, France - Jean I D' Avesnes
Birth - April 1218 (187 year anniversary) - , Etroent, , LUXEMBOURG - Hamelin Plantagenet
Death - April 1202 (203 year anniversary) - , , , England - William Prince Of England
Death - April 1156 (249 year anniversary) - Wallingford Cast, Wallingford, Berkshire, England - Geoffroi Viscount de Thouars (Tours)
Death - April 1043 (362 year anniversary) - St Michael En Lh, Leon, Spain - Ethelred I Wessex
- Pippin (Carloman), King Of ITALY Italy
Birth - April 773 (632 year anniversary) - Of Aachen, Rhineland, Prussia - Grimoald der Jüngere
Death - April 714 (691 year anniversary) - Kirche St. Lambert in Lüttich - Robert de Clifford
Birth - 1 April 1274 (131 year anniversary) - Castle, CLIFFORD, Herefordshire, England - Petronilla (Pernel) Grentmesnil
Death - 1 April 1212 (193 year anniversary) - Leicester, Leicestershire, England - Hildegarde, Countess Of Anjou
Death - 1 April 1046 (359 year anniversary) - , Jerusalem, Palastein - Geoffroy Ii "Ferreol" Count Of Gastinois
Death - 1 April 1046 (359 year anniversary) - , , ANJOU, France - Christina von Sachsen
Death - 1 April 919 (486 year anniversary) - Gandersheim
| - Earl Thomas De Beauchamp + Margaret Ferrers
Marriage - before April 1381 (24 year anniversary) - Warwick Castle, Warwickshire, England - Pedro I Alfonsez De Castilla y León + Juana de Castro
Marriage - April 1354 (51 year anniversary) - , Cuellar, Segovia, Spain - Robert de Clifford + Baroness Euphemia De Neville
Marriage - April 1343 (62 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 (169 year anniversary) - Humphrey de Bohun + Margaret Princess Of Scotland
Marriage - before April 1175 (230 year anniversary) - England ? - Baudouin Viii (V), Count Of Flanders & Hainault + Marguerite de Lorraine
- Hamelin Plantagenet + Isabel de Warenne
Marriage - April 1164 (241 year anniversary) - E. Surry., Eng. - Miles Of Gloucester + Sybil de Neufmarche
Marriage - April 1121 (284 year anniversary) - OR May - Louis Vi, "Louis The Fat" France + Alix (Adelaide) Countess Savoy
Marriage - April 1115 (290 year anniversary) - , Paris, Seine, France
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