Engu oshinke is a collective term referring to a limited number of imperial families and nobles who gathered strength by taking advantage of their relationship with the Emperor in the early Heian Period (8th to 9th century).
院宮王臣家（いんぐうおうしんけ）とは、平安時代初期(8世紀末～9世紀ごろ)、天皇権力と結びついて勢力を強めた少数の皇族・貴族の総称。