Black Brides

"Black Brides" is a term used to refer to the last three wives of King of the Andals, the Rhoynar, and the First Men Maegor Targaryen: Elinor Costayne, Jeyne Westerling, and Rhaena Targaryen. They were so-named because they were all widows of men killed by Maegor. The king married them in desperation for an heir, after failing to produce one with his first three wives.