[Сардорнэ]

Еще наверное сам Денетор подходит.
В 12 томе (The Heirs of Elendil) есть следующее:

The Ruling Stewards of Gondor
The names of these rulers are here added; for though the Hurinionath were not in the direct line of descent from Elendil, they were ultimately of royal origin, and had in any case kept their blood more pure than most other families in the later ages.

Там же есть еще один вариант (вроде более ранний):
These may be added, for though not in the direct line, the Hurinionath, the family to which Pelendur and Mardil belonged, were of Númenórean blood hardly less pure than that of the kings, and undoubtedly had some share in the actual blood of Elendil and Anárion.

По обоим получается, что Денетор родственник королевской линии и значит Арагорну. ВК вроде бы не противоречит.

Другого человека определить пока не могу... Я было подумал, что Ингольд...