The Japanese surnames etymology dictionary.
Miyazaki-ken Miyakonojou-shi , Kagoshima-ken . Terrain . From the tea garden in the gate division system that was in the Edo era. An example of the location of the gate. Kagoshima-ken Satsumasendai-shi Good -buddies Town, Ueno , Miyazaki-ken Miyakonojou-shi Marutani-machi. Kagoshima-ken Minamisatsuma-shi The tea garden at Chinen- cho Otsushi (Chien) gate. My surname is Chaen. The gate name is a variant of the 茶園 room.