Feudal Lord
Daimyo
noun
The master of a fiefdom is the feudal lord. We also call them Daimyo.
はんしゅ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
藩主の墓に参ってきた。
We went to visit the daimyo’s tomb.