Bump-a-thump
Current DBWI Timeline:
POD: unknown, but before 1485 (Yorkists win War of Roses) and 1477 (Charles of Burgundy survives).
POD-1520:
England
Richard III becomes King of England. At some point he dies, and John de la Pole becomes John II. Edmund de la Pole (Duke of Suffolk) and Edward Plantaganet (Earl of Warwick) survive this entire period.
Europe
By 1520, the name of the King of France is Louis. This could be a longer-lived OTL Louis XII, or someone else entirely. However, his heir is Ludovico Sforza, Duke of Milan. Whether this Ludovico is the OTL Duke of Milan from 1494-1500 who died in a French prison in OTL or an ATL descendant of his is unknown. How he became heir to the French throne is also unknown.
Charles I of Burgundy becomes a King rather than a Duke at some point. His heir by 1520 is Philip, most likely his son, and already of age to lead an army.
The Bavaro-Swiss Commonwealth is formed.
1520:
England
Successful invasion of England by Burgundy. John II's brother, the Duke of Suffolk, is defeated at Buckland, and John gives himself up to Charles at London. The Earl of Warwick (Richard III's "temporary" heir) continues resistance in the north.
Europe
Ludovico Sforza is killed in battle with Charles I's heir, Philip.
1522:
England
The Earl of Warwick dies. Major resistance to Burgundian rule ends...for a time.
1523:
Europe
Charles I of Burgundy dies at the age of 90.
16th and 17th centuries:
England
Several pretenders to the throne of England rise up: none are ultimately successful. The Burgundians are often at war with Scotland, and two invasions of Scotland ultimately fail.
Europe
At least for this long, Burgundy maintains its possessions in England, the Low Countries, and their core territories. No colonial efforts are made, nor are invasions of North Africa or Italy made.
The Kingdom of France falls apart very soon after Ludovico Sforza's death, and the title does not exist for quite some time.
The Bavaro-Swiss Commonwealth becomes weak after the Twenty Years' War (when? why?), and is eventually divided between Burgundy and Saxony (how did Saxony become powerful?).
The French counties and duchies (Artois, Berry, Orleans, etc) remain independent, and are occasionally at war with Burgundy. They are never completely subdued, and are eventually united into a new France under the House of Savoy.
Savoy eventually united non-Burgundian France into, well, France (how?).
The north Italian republics eventually consolidate into the Italian Confederation (why?).
Aragon is powerful in the Mediterranean throughout this period (why?).
The Seventy Years' War rages from 1552-1625, involving Burgundy, Scotland, Savoy-united France, the Hapsburgs, the Ottomans, Russia, and Sweden. (What are the results? How did all of those nations get involved?) Burgundy starts the war (how?) by getting into a struggle over the German states with the Hapsburgs. Luther's "heresies" still take place, and in the midst of this devastating war several Lutheran Crusades take place: we do not know if the Lutheran heretics survive this or not. Interestingly, the Hapsburgs getting into a long war with Burgundy and others helps explain how the Italian city-states were able to be united without foreign intervention.
18th century to the present day:
England
Unknown.
Europe
Burgundy and Savoyard-united France are bitter enemies for many years. Since France is Burgundy's nemesis, does this mean Burgundy eventually is destroyed, or seriously weakened?
The Italian Confederation becomes the New Roman Empire (how did it get Rome? what about the Papacy? how did a confederation of republics become an empire?), which has a very large effect on the rest of European (if not world) history.