Ichien Chigyo was a term used during the Japanese Middle Ages to mean that a particular individual has integrated control over lands in complicated and multi-layered relationships of dominance and rights of the Shoen Koryo (public lands and private estates) system.
一円知行（いちえんちぎょう）とは、日本の中世で使用された用語で、荘園公領制の重層的に入り組んだ支配・権利関係の中で、ある者が一元的に土地を支配することを指す。