Well, if Jordi converted in 1689, then Max Emanuel, Carlos II and Marie Louise d'Orléans are all still alive. So it can hardly be construed as "self interest" or "ambition". I do think that it may cause some problems that he's a recent converso but a) there aren't all that many other Catholic guys of suitable rank for Maria Antonia to marry (dauphin won't remarry; the king of Portugal and duke of Savoy are already married; the elector of Bavaria is too young; the crown prince of Poland (Jakub Sobieski) too parvenu; and suddenly Europe's out of Catholic kings) and b) if his brother (Philipp/Friedrich) is anything to go by, he was received into the Catholic church by the pope himself (which I imagine will count in his favour). Plus, if Leopold endorses Jordi (perhaps at the empress' urging), even though he perhaps favours another candidate (like the empress' brother - Louis XIV can easily get the pope to refuse a dispensation for Maria Antonia to marry her uncle), I don't see most Spaniards objecting too strenuously. As long as he's kept far away from religious matters and their kids are good little Catholics. Even Jordi being a second son can count in his favour. The previous queens of Spain (Juana la Loca and Isabel la Catolica) both married a king/crown prince. Jordi doesn't have a realm of his own to fall back on like Fernando II of Aragon or Philipp the Handsome. So, Jordi's purpose in Madrid is to be nothing more than the royal stud. Let him fiddle with the army, that's fine. If it keeps him away from politics.