Rokkaku Sadayori - News from Rokkakusa

A warlord in southern Omi during the Sengoku period. The second son of Takayori. He first entered the Shokoku-ji Temple in Kyoto and called himself Koushitsu Jouki, but in 1516 (Eisho 13) he returned to Omi due to the rebellion of the shugodai Iba Sadatsugu, and in 1518 he inherited the family headship upon the death of his brother Ujitsuna and took the name Sadayori. Initially, he acted as a close attendant to the shogun Ashikaga Yoshitane, but from 1521 (Taei 1) he repeatedly traveled to Kyoto together with Hosokawa Takakuni to support Yoshiharu, the son of the former shogun Yoshizumi. For three years from 1532 (Tenbun 1), he welcomed Yoshiharu to Kuwanomi-dera Temple near his residence, Kannonji Castle (Omihachiman City, Shiga Prefecture). Around this time, he burned down Hongan-ji Temple (1532), provided reinforcement for Saito Toshitsuna of Mino (1536), and attacked the Nagano clan of Ise (1540). In 1546, he became the official attendant for Yoshiharu's son Yoshiteru's coming-of-age ceremony, and was made Kanrei-dai and Jushi Shige (Junior Fourth Rank). As the Azai clan expanded their influence in northern Omi, he attacked them at Minoura and Odani Castles, while at the same time he was involved in the internal strife of the Gamo clan, and thus advanced his control over his vassals, which led to the prosperity of the Rokkaku clan during the Warring States period. Sunset on the 4th of New Year 21. The legal name is Kounji Komuro Joki.

[Keiichi Miyajima]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

南近江(みなみおうみ)の戦国大名。高頼(たかより)の次男。初め京都相国(しょうこく)寺に入り、光室承亀(こうしつじょうき)と称したが、1516年（永正13）守護代伊庭(いば)貞説の乱により近江に帰り、1518年兄氏綱(うじつな)の死により家督を継ぎ、定頼と名のった。当初、将軍足利義稙(あしかがよしたね)の近侍として行動していたが、1521年（大永1）から細川高国(たかくに)とともに前将軍義澄(よしずみ)の子義晴(よしはる)を援助して再三上洛(じょうらく)した。1532年（天文1）から3年間、居城観音寺(かんのんじ)城（滋賀県近江八幡(おうみはちまん)市）近くの桑実(くわのみ)寺に義晴を迎えた。この前後、本願寺焼討ち（1532）、美濃(みの)斎藤利綱(としつな)への援軍（1536）、伊勢(いせ)長野氏攻撃（1540）を行った。1546年には義晴の子義輝(よしてる)の元服加冠役となり、管領(かんれい)代・従(じゅ)四位下となった。また北近江に浅井氏が勢力を伸ばすなか、これを箕浦(みのうら)や小谷(おだに)城に攻め、一方、蒲生氏の内訌(ないこう)に関与するなど家臣団統制を進め、戦国期の六角氏の盛期を築いた。天文(てんぶん)21年正月4日没。法号江雲寺光室承亀。

［宮島敬一］

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