
It's theorised that Rhaegar himself wrote Jenny's song, as he sang a song at the Tourney of Harrenhal that made Lyanna Stark weep. That didn't make it into the show, but now the woods witch and Jenny's song have, and at a crucial time. The woods witch is believed to be the same witch as the Ghost of High Heart, a character Arya and the Brotherhood Without Banners visit in the books, where she asks to hear Jenny's song as payment for making various prophecies.


It was this prophecy, at least in part, that led to King Jaehaerys II - who only ascended to the throne because of Duncan's abdication - marrying his children, Aerys and Rhaella. The woods witch in question had went with Jenny to court, and this is where it gets particularly crucial: it was this very woods witch who made the prophecy that The Prince That Was Promised would come from the line of Aerys and Rhaella. Just as important as those who died, however, was who survived: Princess Rhaella, Rhaegar, who was born amidst the flames, and a woods witch who had been close friends with Jenny. Still an event shrouded in mystery, this was where a fire broke out at the Targaryen's pleasure castle, killing Aegon V, Ser Duncan the Tall, and Prince Duncan as well. The ballad plays as a lament to those she had lost, which most likely refers to the Tragedy at Summerhall. While Duncan's decision caused great strife both for his family and others in the Seven Kingdoms, Jenny was eventually accepted at court, with the couple becoming a favourite subject of singers - hence the enduring popularity of Jenny's song. Despite his name, his claim, and the fact he was already betrothed to a Baratheon woman, he chose to marry Jenny instead, giving up his right to the Throne. It's a gorgeous, mournful piece of music, but what does it really mean? The titular Jenny of Oldstones was a lowborn woman, described as being "strange, lovely, and mysterious", and Prince Duncan Targaryen, son of King Aegon V and heir to the Iron Throne, fell in love with her.

The show gives us the full version: "High in the halls of the Kings who were gone / Jenny would dance with her ghosts / The ones she had lost and the ones she had found / And the ones who had loved her the most / The ones who'd been gone for so very long / She couldn't remember their names / They spun her around on the damp old stones / Spun away all her sorrow and pain / And she never wanted to leave / Never wanted to leave."

The song, which is being called Jenny of Oldstones by the TV series - it's simply Jenny's song in the books - crops up a couple of times in the source material, although we never get to read all the lyrics.
