Rainer IV of Hulstria (April 18, 2341-November 1st, 2426) of the Rothingren-Traugott Dynasty, was the second Kaiser of the Imperial Crownlands of Greater Hulstria. He assumed the throne following the death of his father, Rudolph III, in June of 2396. Rainer IV was just as voical on politic issues as his father, speaking out against those against Hutori leaving the Union of Macon, on behalf of the Welsh in Greater Hulstria and against Republicanism in Hulstria.