khan - Mongols, sultan - ?

TURKEY
List of words for the clue khan - Mongols, sultan - ? from the crossword:
SHAH PERSIA RAJA KING INDIA OMAR SWAYER RULER TATAR HORDE TATARS ASIAN AGA SWAT OMAN OMANI AGHA RUTH SAL
WordClue
KHANTurkey - sultan, Mongols - ?
KINGMongols - khan, Spain - ?
RAJAMongols - khan, India - ?
SHAHMongols - khan, Persia - ?
YURTApache - tepee, Mongols - ?
INDIAkhan - Mongols, raja - ?
TEPEEMongols - yurt, Apache - ?
PERSIAkhan - Mongols, shah - ?
SULTANMongols - khan, Turkey - ?
GENGHIS... Khan
MONGOLSsultan - Turkey, khan - ?
PERSIAkhan - Mongols, shah - ?
NIKITAKhrushchev, Soviet leader