Item from A Song of Ice and Fire by George R.R. Martin
The ancestral sword of House Dayne — forged from a fallen star, pale as milkglass, wielded only by a knight deemed worthy of the title Sword of the Morning.
Dawn exists outside the usual power dynamics of Westeros because it cannot be inherited — it must be earned. Only a Dayne judged worthy by the family may bear it and take the title Sword of the Morning, and there have been generations where no Dayne qualified. Arthur Dayne, the finest knight of Aerys's Kingsguard, was the last Sword of the Morning, and his death at the Tower of Joy at Ned Stark's hands (with Howland Reed's intervention) is one of the defining moments of Robert's Rebellion. Dawn was returned to Starfall after Arthur's death, as tradition demands. The sword transforms any scene it appears in because it represents an ideal — that some things in this cynical, bloody world are still earned rather than seized, and that merit still matters even when everything else has been corrupted.
A greatsword of pale, milky-white metal that seems to glow faintly in moonlight. Not Valyrian steel — the metal came from the heart of a meteorite that fell on Starfall thousands of years ago. The blade is alive with reflected light, beautiful and otherworldly, unlike any other weapon in the known world.
Also known as: Dawn, the Sword of the Morning's blade, the Dayne sword