The name appears in some earlier records, with one [[1438]] document mentioning a person by the name of Uruku Ucchi (烏魯古結制); the ''[[Omoro soshi|Omoro sôshi]]'' also mentions the placename Oroku-yokotake, though it's unclear to where, precisely, this refers. | The name appears in some earlier records, with one [[1438]] document mentioning a person by the name of Uruku Ucchi (烏魯古結制); the ''[[Omoro soshi|Omoro sôshi]]'' also mentions the placename Oroku-yokotake, though it's unclear to where, precisely, this refers. |