Elenwë and Idril
"They dared to pass into the bitterest North; and finding no other way they endured at last the terror of the Helcaraxë and the cruel hills of ice. Few of the deeds of the Noldor thereafter surpassed that desperate crossing in hardihood or woe. There Elenwë the wife of Turgon was lost, and many others perished also; and it was with a lessened host that Fingolfin set foot at last upon the Outer Lands."
I believe Elenwe would have told Turgon to save their daughter first, resulting in her own death.
Wow I’m drawing a lot lately.