Morganatic marriage

• abstract: In the context of royalty, a morganatic marriage is a marriage between people of unequal social rank, which prevents the passage of the husband's titles and privileges to the wife and any children born of the marriage. Now rare, it is also known as a left-handed marriage because in the wedding ceremony the groom traditionally held his bride's right hand with his left hand instead of his right.

以上来源于: WordNet