CREATE TABLE table_27064 ("Name of the war" TEXT, "Ottoman sultan" TEXT, "Persian shah" TEXT, "Treaty at the end of the war" TEXT, "Victor" TEXT)

Who was the Ottoman Sultan where the treaty at the end of the war was the Treaty of Constantinople (1590)?
SELECT "Ottoman sultan" FROM table_27064 WHERE "Treaty at the end of the war" = 'Treaty of Constantinople (1590)'
SELECT "Ottoman sultan" FROM "table_27064" WHERE "Treaty at the end of the war" = 'Treaty of Constantinople (1590)'