Sadly none of those are right.
(Each number does eventually give a single answer which provides a letter of the password.)
From last time:
Romendacil - Element of stone, as a king of Gondor, the Land of Stone.
Earendur - Element of discord, as the king whose reign saw the final days of a united Arnor.
Girion - Element of green, for his emerald necklace.
Nain - Element of fire, for being killed by a Balrog.
Ar-Adunakhor - Element of water, as king of the island nation of Numenor.
Lenwe - Element of wood, because he lived in the woods.
It wasn't quite pure 'where they live', though that was the original idea - but too many of them lived in rocky places! So I expanded it to 'something about them'. The elements were added to hopefully offer a bit more of a hint than the convoluted maths of the rest of the clues.
hS