Prince Nicholas has said regarding unequal marriages in the Imperial Family:

However, this episode is not reported by contemporary sources, which instead condemn the pair for making an unequal and inappropriate marriage in dubious circumstances.

The later Dukes of Anhalt-Köthen all descend from the "unequal" marriage.

'Was it an unequal marriage, sir, in point of years?'

Was it an unequal marriage in point of years, this unlucky job of yours?

Sources hint that this was an unequal marriage, because the king was disabled mentally.

In 1776, the Crown enacted a sweeping set of rules to put a stop to "unequal" marriages.

Your lively talents would place you in the greatest danger in an unequal marriage.

I can release her from the daily pain of an unequal marriage, and the struggle to conceal it.

She was the first-born child of a socially unequal marriage that had briefly scandalised the English court.