A Different Union of Lancaster and York (with a different Philip and Elizabeth)
Charles I,
Duke of Burgundy (1433-1477) 1m: 1440 Catherine de France (1429-1448); 2m: 1454 Isabelle de Bourbon (1436-1465); 3m: ?
[2m.] Marie (b.1457) m: 1475 Maximilian, Holy Roman Emperor (b.1459)
issue
[2m.] Philippe IV [1], Duke of Burgundy, King of England [jure uxoris from 1485] [2] (b.1462) m: 1485 Elizabeth I, Queen of England (b.1466)
Elizabeth (b.1486)
Mary (1488-1493)
Charles I, King of England (b.1489)
Stillborn Daughter (1492)
Stillborn Son (1493)
Edward, Duke of York (b.1495)
Stillborn Daughter (1498)
[1] b) son ([mid-Nov] 1462-young). The chapter of Brussels Sainte-Gudule authorised the baptism of “
un autre enfant du comte de Charolais” [who was recently born] by charter dated 24 Nov 1462
[713]. This son presumably died young as no other reference to him has been found. No record has been found of his baptismal name, assuming that he survived long enough for the baptism to take place.
I'm unsure if Charles will remarry to Margaret of York if he has a son (that seems to have been the main motivation for the marriage). Maybe Marge ends up in Brittany instead?
[2] Henry VII mounts his expedition of OTL, but dies at Bosworth field, leaving the Lancastrian cause, politely put, up a creek. Philippe's claim would be OTL:
A transaction of his own of this time, the duke did not publish. It was a procedure perhaps justified by these wonderful "mutations in the world" which impressed Commines as strange and terrible. The Duke of Burgundy caused a legal document to be drawn up attesting his own heirship to Henry VI. of England, and filed the same in the Abbey of St. Bertin with all due formality. If there came more "mutations" in the world whose very existence was a new experience to Philip de Commines, Charles was ready to interpose his own plank in the new structure.
In the archives of the House of Croy in the château of Beaumont, rests this document, which was duly signed by Charles on November 3, 1471, in his own hand "so that greater faith" be given to the statement that no one was truer heir to the Lancaster House than Charles of Burgundy.33 Two canons attested the instrument as notaries, and the witnesses were Hugonet, Humbercourt, and Bladet.
Philippe gets the "jure uxoris" title because a) he's already ruler of a foreign realm and b) they decide that his "reign" is for Elizabeth's lifetime only.
@RedKing