Hot answers tagged marriage
First, I am assuming that you are giving your fantasy world a "Western European" flavour. Working from this assumption there are still a myriad details that vary from nation to nation within Western Europe, but in general the two houses are allied, but the offspring only marshall the coat of arms; the husband and wife are each only entitled to their own ...
During the preparation of the royal wedding between The Royal Heiress to the Swedish throne and a commoner, people talked about heraldry and the possibility that a new royal house will emerge. But this changed when The Royal Household afirmed that the commener Westling will change and add his surname into The Royal Family name.
So your fantasy is about about a common man obtaining a title by marrying into a noble family? To my best knowledge the chances of this happening are slim. What is more likely is that the woman (or at least her children) will lose her title. As cases in points in recent history, consider Alfonso Díez Carabantes (the third husband of the Duchess of Alba and ...
In one unusual circumstance, when the Count von Bohlen married Bertha Krupp (of the Krupp arms house), the man (von Bohlen) was asked by the Kaiser to add his wife's surname, Krupp, to his own. They became the Krupp von Bohlnens. This was true, even though as a member of the nobility, von Bohlen technically outranked his (commoner) wife. But the name ...
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