Right now, all that's been seen of Narsil is when Miriel gifts it to Elendil during The Rings of Power season 2 finale. "My place is here," Miriel tells her former captain. Once it becomes clear ...

But we were all of us deceived, for another heir of Elendil (Peter McKenzie) was made. The prologue doesn't show it, likely because of narrative or time constraints, but Isildur had a brother ...