liege

liege
/li:dʒ; lidʒ/ n
1 (also `liege lord) (in feudal times) sovereign or lord, entitled to loyal service （封建时期）君主, 王侯.
2 (also `liegeman / -mən; -mən/) man or servant bound to give loyal service to such a sovereign or lord （君主或王侯的）臣仆.

牛津英汉双解词典