Uemonden 【上門田】2 The Japanese surnames etymology dictionary.
① Topography . Miyazaki-ken Kobayashi-shi Shimada from the Hosono in the inside, from inside. There was a Shimada (Uchishimada) gate inside the gate division system in the Edo period in the same place.
② variant of 内島 . Gunma - ken Agatsuma - gun Naganohara - machi In Gulma , I tell you that I came to Ginma - ken Takasaki - shi Minowa Castle in Minobu - machi Tojeya after resigning in 1566 (Norinori 9 years) and he changed from Naito surname. 内藤 reference.