|The title of this article is conjecture based on information revealed in the A Song of Ice and Fire novels or related material and may be subject to change.
- "But his third wife couldn't give him a child either. Desperate to cement his stolen throne with an heir, Maegor took three wives at once, known as the Black Brides because each were women he'd widowed in his wars. All three women grew full with child in time, but each gave birth to the same twisted monstrosities as his second wife. One need not be a maester, much less a Grand Maester, to deduce the common thread here. "
King Maegor married Elinor out of desperation for an heir, after failing to produce one with his first three wives, choosing her because she was of proven fertility. Her late husband was at some point killed by Maegor. However, she still miscarried just like the others.
In the books
In The World of Ice & Fire and Fire & Blood, Elinor Costayne's husband Theo Bolling was executed, accused of conspiring with Queen Alyssa Velaryon to place Prince Jaehaerys on the Iron Throne. After seven days of mourning, she was forced to marry King Maegor.
Elinor was one of the Seven Speakers who were assigned by Jaehaerys to spread rumors all over the realm about his wife Alysanne's virtues, thus make the people accept their incestuous marriage.