emperor - Japan, maharaja - ?

INDIA
List of words for the clue emperor - Japan, maharaja - ? from the crossword:
NERO TSAR RUSSIA PHARAOH MAHARAJAH EGYPT OTHO OTTOI TITUS OTTO TOKYO TRAJAN NEROS RULER OTTOIV OTTOII SHAH NAPOLEON KAISER
WordClue
NERORoman emperor
TSARJapan - emperor, Russia - ?
EGYPTemperor - Japan, pharaoh - ?
JAPANmaharaja - India, emperor - ?
RUSSIAemperor - Japan, tsar - ?
TRAJANRoman emperor
EMPERORIndia - maharaja, Japan - ?
HADRIANRoman emperor
PENGUINAdelie or emperor
PHARAOHJapan - emperor, Egypt - ?
AUGUSTUSRoman emperor
AURELIUSMarcus, Roman emperor
CALIGULARoman emperor
CLAUDIUSRoman emperor
COMMODUSRoman emperor
MAHARAJAJapan - emperor, India - ?
TIBERIUSRoman emperor
CARACALLARoman emperor
VESPASIANRoman emperor
DIOCLETIANRoman emperor
COMPASSIONempathy, mercy
EGYPTemperor - Japan, pharaoh - ?