East-victor
From Tolkien Gateway
The name taken by two great heroes and 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.