Theoden's sisters' sons?

[Tar-Jêx]

Originally Posted by Inziladun

Since Éomer was in fact the obvious heir in Théoden's mind, it seems that none of the other children of Thengel produced male offspring.

Éomer had also proven himself as a leader, and was obviously quite popular. I don't think the people of Rohan would have objected him as their king even if it broke the traditions.