The OTL inheritance of Chafles V was absurd enough. Multiple kingdosms, an entire continent overseas, and a swarm of bits and pieces scattered about Europe.
Spain
The West Indies
Central America
New Grenada
Peru
Sicily
Sardinia
Naples
Milan
Hungary
Brabant
Limburg
Zeeland
Holland
Friesland
Gelderland
Drenthe
Groningen
Overyssel
Flanders
Hainault
Artois
Luxemburg
Franche-Comté
Charolais
Zutphen
Sundgau
Breisgau
Hither Austria
Burgau
Tyrol
Carniola
Carinthia
Styria
Austria
Bohemia
Moravia
Silesia
But why stop there? What else could have landed in the Habsburg net? What other realms was he a possible heir to, if the dice rolled the right way?
France? Scotland? Poland? Portugal? Sweden?
Hesse, Mecklenburg, Saxony, Holstein, Berg, Mark, Nassau, Brunswick, Bavaria?
Savoy, Parma, Mantua, Tuscany?