I'm not sure if this post should go here, or post-1900, so please move if required.
In 1898, Jaime, duke of Madrid, desired to marry Mathilde of Bavaria (daughter of the later Ludwig III of Bavaria and his Modenese wife, Maria Theresia). Unfortunately for him, in his desire to marry her, he found several members of both families ranged against him (his stepmother, Berthe de Rohan; the mother of the bride, Maria Theresia of Modena; the Queen of Bavaria's half-sister, Maria Cristina of Austria, Regent of Spain; the Austrian court, and the Bavarian infantes of Spain). He seems to have really loved Mathilde, since the next time I can find a source citing a marriage for him is only in 1919 (and then it is to his niece, Princess Babiola Massimo, however the appeal for a dispensation to the Vatican was denied, citing that the Pope had made it in 1902 that dispensations on the grounds of consanguinity would no longer be granted - royal or no).
But what if Mathilde's father (she was reportedly his favorite) had decided to fly in the face of the other courts? Her OTL marriage was contracted by her solely with the intention of getting away from her over-bearing mother. And by 1900, how much influence could Austria/Spain have put on Bavaria to not allow the marriage to go through? Maybe diplomatic tensions, but would it have been enough to cause a break in relations?
In 1898, Jaime, duke of Madrid, desired to marry Mathilde of Bavaria (daughter of the later Ludwig III of Bavaria and his Modenese wife, Maria Theresia). Unfortunately for him, in his desire to marry her, he found several members of both families ranged against him (his stepmother, Berthe de Rohan; the mother of the bride, Maria Theresia of Modena; the Queen of Bavaria's half-sister, Maria Cristina of Austria, Regent of Spain; the Austrian court, and the Bavarian infantes of Spain). He seems to have really loved Mathilde, since the next time I can find a source citing a marriage for him is only in 1919 (and then it is to his niece, Princess Babiola Massimo, however the appeal for a dispensation to the Vatican was denied, citing that the Pope had made it in 1902 that dispensations on the grounds of consanguinity would no longer be granted - royal or no).
But what if Mathilde's father (she was reportedly his favorite) had decided to fly in the face of the other courts? Her OTL marriage was contracted by her solely with the intention of getting away from her over-bearing mother. And by 1900, how much influence could Austria/Spain have put on Bavaria to not allow the marriage to go through? Maybe diplomatic tensions, but would it have been enough to cause a break in relations?