Spoiler: Rhaegar He kidnapped Lyanna when he was married to Elia. No idea why. Also not sure if he married Lyanna or kept her captive at the tower of joy. I feel that is immoral for such a sweet guy
I don't remember now where I downloaded them from, but this is a working link. Index of /Backups/Ebooks/A Song of Ice and Fire You can download the pdfs one by one from here.
Spoiler: Rhaegar Good point. His character isnt in detail even in books- It is like a conspiracy theory- that he was swayed by Lyanna's beauty and how she could fight like a man. The royals had no place for love, but it looks like Lyanna and Rhaegar fell in love.Moreover Lyanna was betrothed to Robert Baratheon, so kidnapping or runaway was their option for them to express their love or maybe even marriage. Battle of Trident was fought by Robert to claim his betrothed Lyanna andRobert is the one who kills Rhaegar. Lyanna in the books has expressed her disgust to Robert and didnt like the fact he drank and was a womaniser