Habsburgs: first Spain (through Philip of Burgundy), then back to Austria (through Ferdinand, his younger son), then Austria-Este (Modena); later Tuscany
Bourbons: first Spain (through Philippe, Duke of Anjou), then Parma; later Two Sicilies
Coburgs: first Portugal; later Belgium and Bulgaria
Glücksburg: first Greece, then Norway
Can anybody expand on this?