Quote:
Originally Posted by JR76
The Grand duke's uncle Prince Irakli Bagration-Mukhrani married (as one of his four wives) a granddaughter of King Alfonso XII, Princess María de las Mercedes of Bavaria, Infanta of Spain.
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Infanta María de las Mercedes of Spain, Princess of Bavaria.
Spanish royal titulature took precedence for grandchildren of Spanish sovereigns. Just as it is Prince Joachim to Denmark, Count of Monpezat, rather than Count Joachim of Monpezat, Prince to Denmark.
https://boe.es/datos/pdfs/BOE//1911/...0027-00028.pdf
In Spain she, like other infantas and infantes, was often styled using both parents' surnames as Infanta Doña María de las Mercedes of Bavaria and Bourbon.