Omiya family - Omiyake

Japanese: 大宮家 - おおみやけ

...After the title of Kanmu was changed to Tonomo no Kashira, the head of the clan inherited the position of Kanmu, and from the Kamakura period onwards, he also held the position of Tonomo no Kashira, and almost exclusively held both positions. At the beginning of the Kamakura period, Takamoto was temporarily dismissed from his position as Kanmu, and his brother Naganari's son Hirofusa took his place. This caused the clan to split into the Mibu family of Takamoto's lineage and the Omiya family of Hirofusa's lineage, and they fought over the position of Kanmu with the head of the clan. However, with the death of Omiya Iji in 1551 (Tenbun 20), the Omiya family was extinguished, and the Kanmu family returned to the Mibu lineage. The Mibu Kanmu family continued to lead low-ranking officials in the Edo period and supported the administration of court ceremonies and public affairs, but after the Meiji Restoration, they were ranked as members of the nobility and awarded the title of baron. ...

From the Shijo family

…The family descended from Mimasaka no Kami Sueshige, the third son of Left Minister Uona, son of posthumously appointed Grand Minister of State Fujiwara Fusasaki, and the founder was Gon Dainagon Takasue, the male of Nakamikado Chunagon Ienari at the end of the Heian period. Thereafter, the family was called the Shijo family. The family name was also called the Omiya family, as Takasue had his residence in Shijo Omiya. The family was famous for its knife skills, and passed down the etiquette of cooking, but also played the sho (Japanese traditional instrument) as a family business. …

*Some of the terminology that refers to the "Omiya family" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…のち官務という)になってからは，同氏長者が官務を世襲する例となり，鎌倉時代以降は主殿（とのも）頭を兼ねて，両職をほぼ独占世襲するに至った。鎌倉時代の初め，隆職（たかもと）が一時官務を罷免され，その兄永業の子広房がこれに代わったため，同氏は隆職流の壬生（みぶ）家と広房流の大宮家に分かれ，氏長者と官務の地位を争ったが，1551年(天文20)大宮伊治の死没によって大宮家は断絶し，官務家は壬生一流に帰した。壬生官務家は江戸時代においても地下（じげ）官人を率いて朝廷の朝儀，公事の運営を支えたが，明治維新後華族に列し，男爵を授けられた。…