Mongol invasions of Anatolia occurred at various times, starting with the campaign of 1241–1243 that culminated in the Battle of Köse Dağ. Real power over Anatolia was exercised by the Mongols after the Seljuks surrendered in 1243 until the fall of the Ilkhanate in 1335. Because the Seljuk Sultan rebelled several times, in 1255, the Mongols swept through central and eastern Anatolia. The Ilkhanate garrison was stationed near Ankara. Timur's invasion is sometimes considered the last invasion of Anatolia by the Mongols. Remains of the Mongol cultural heritage still can be seen in Turkey, including tombs of a Mongol governor and a son of Hulagu.