Family Tree Trivia

[Huinesoron]

Originally Posted by Urwen

Two related people performed the same kind of 'grand deed'. Who are they and how are they related?

Finwe and Fingolfin are father and son and both faced Morgoth (and died).

Earnil and Earnur are father and son and both fought the Lord of the Nazgul.

Durin III is the direct (and distant) ancestor of Dain, and they both faced Durin's Bane (though only Dain lived).

Arvedui is Aragorn's ancestor; both fought the Nazgul.

Elros is the ancestor of Elendil; both sailed over the sea and founded great kingdoms of the Edain.

Beren and Tuor are, what, first cousins twice removed? Both married Elven women and had half-elven sons.

Feanor is Earendil's great-great-uncle; both sailed across the Great Sea to alter the course of the First Age at one of its ends.

Beren is many-times-great-grandfather to Isildur, and both cut a Dark Lord to get some jewellery.

Namo and Irmo are brothers, and both sang in the Music of the Ainur.

Are we following Bilbo's rules where "just guess randomly" is a viable puzzle, or is there a clue hidden somewhere in the question? I can't find 'grand deed' as a canonical descriptor, and that's the only thing that would seem to fit.

hS