Omi no kuninomiyatsuko (淡海国造)
Omi no kuninomiyatsuko (Omi kokuzo) was the kuninomiyatsuko (kokuzo: the head of a local government) who governed the western part of Omi Province (the west coast of Lake Biwa). It is also called Chikatsuomi no kuninomiyatsuko (Chikatsuomi kokuzo).
Ancestor
According to "Kojiki" (The Records of Ancient Matters), the earliest ancestor was Ameoshitarashihiko (a prince of Emperor Kosho) and it was related to the Kasuga clan and the Ono clan.
According to "Kokuzohongi" (The Original Records of Provincial Governors), Otamuyawake, the third descendant of Hikoimasu no Miko (a prince of Emperor Kaika), is said to have been appointed the Omi no kuninomiyatsuko in Seimu Emperor's era.
Clan
It was the Omi clan. It was probably related to the Ono clan. The clan of OMI no Mifune was unrelated because his clan was the descendants of Emperor Kobun.
Home
It may be in Shiga County, Omi Province. It is said to have annexed Omi no Yasu no kuninomiyatsuko (Omi no Yasu kokuzo) on the east coast of Lake Biwa afterwards and governed all of Omi Province.
Ujigami (a guardian god of a clan)
It is in Takebe Shrine in Otsu City, Shiga Prefecture. The enshrined deity is YAMATO Takeru no Mikoto (.a prince of Emperor Keiko, a hero in ancient Japan). The shrine is the Ichinomiya (shrine with the highest ranking in the area) of Omi Province.
Descendant
One of the descendants was Otamuyawake, Omi no kuninomiyatsuko. He was the earliest ancestor of Yasu no kuninomiyatsuko. He was the third descendant of Hikoimasu no Miko. His daughter, Futajinoirihime, married YAMATO Takeru no Mikoto and had Inayoriwake no Miko.
One of the descendants was INUGAMI no Mitasuki (INUKAMI no Mitasuki), a diplomat in the Asuka Period. He was a Japanese envoy to Sui Dynasty China. He was the first Japanese envoy to Tang Dynasty China.