Her death is reported in 455 FA, which happens to be the same year that Aegnor died in the Dagor Bragollach. Coincidence?Dying of broken hearts is more of an elvish thing. There is little reason for Andreth to die of a broken heart as an old woman over the death of her sweetheart who ditched her when she was a teen. I'm sure she was sad to hear about it. But...they weren't even together.