Talk:Rhúdel/@comment-168.216.11.64-20170314130751/@comment-26172435-20170314140450

This seems not explicitely mentioned. Gondor did conquer vast parts of Rhûn at some point but only Dorwinion was reported to be a province and that would have been the easternmost land Gondor owned. Most useful reference can be found on this page, or in the lore itself of course.