CREATE TABLE table_47749 ("Elector" TEXT, "Nationality" TEXT, "Order and title" TEXT, "Elevated" TEXT, "Elevator" TEXT)

When the elevator was Innocent IV what was the nationality?
SELECT "Nationality" FROM table_47749 WHERE "Elevator" = 'innocent iv'
SELECT "Nationality" FROM "table_47749" WHERE "Elevator" = 'innocent iv'