East-victor
From Tolkien Gateway
"East-victor" was the name taken by two great kings in the history of Gondor, Tarostar and Minalcar. Each of these drove back an Easterling threat to the South-kingdom, and each therefore took the name "East-victor" (Rómendacil in Elvish). Tarostar became Rómendacil I, and Minalcar ruled Gondor some centuries later as Rómendacil II.
