Trolls in The Hobbit and Lord of the Rings

[Alcuin]

Arathorn II son of Arador wed Gilraen daughter of DÃ*rhael in Third Age 2929, Shire reckoning 1329. The next year, according to the Tale of Aragorn and Arwen in Appendix A and the Tale of Years, Appendix B, Arador was killed by Trolls in the Coldfells north of Rivendell. Arathorn became Lord of the Dúnedain. Two years later, Arathorn was killed fighting Orcs, and Gilraen took Aragorn to Rivendell, where Elrond became his foster-father and called him Estel.

When Aragorn was 10, Thorin & Co. passed through Rivendell, including Gandalf and Bilbo.

Do you suppose the hill-trolls that killed Arador were the same that Thorin & Co. found just west of Rivendell in the forested hills of Rhudaur?

Two asides:

1. I wondered what a “coldfell� was. Cold Fell is the name of a 961 foot (293 m) hill in the Lake District. Nearby are the ruins of Calder Abbey with a fine medieval bridge built by the monks of the once-thriving place. Cold Fell is topped with curricks, stone structures attributed to shepherds, though I image they’re much older. (Megaliths.co.uk defines them as “ancient village or settlement.�) The place looks quite lovely: not at all as I imagined Tolkien’s rocky Ettenmoors would look, though it does appear be rather rocky in parts. A fellow named Graham Saunders has filmed the area extensively and posted his work to YouTube. Tolkien was probably familiar with the region, and used the name for the area north of Rivendell.
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2. “Gilraen took Aragorn to Imladris,� says Appendix A; but earlier, it says,

   After Arvedui the North-kingdom ended, for the Dúnedain were now few and the peoples of Eriador diminished. Yet the line of the kings was continued by the Chieftains of the Dúnedain, of whom Aranarth son of Arvedui was the first. Arahael his son was fostered in Rivendell, and so were all the sons of the chieftains after him…

   There is no question that Aragorn was also “fostered in Rivendell,� for Elrond stood in place of his deceased father. But it sounds to me as if Arathorn was trying to hide his wife and son; for in Return of the King, Aragorn told Legolas and Gimli, “To know that I lived and walked the earth was a blow to [Sauron’s] heart, I deem; for he knew it not till now.�