An omuraji was appointed each time when a new okimi came to throne; at the time of Emperor Yuryaoku, when both OTOMO no Muroya and MONONOBE no Me were assigned the position of omuraji, this poistion became a regular one together with oomi; in the early sixth century during the time of Emperor Buretsu, OTOMO no Kanemura and MONONOBE no Arakahi were both appointed as omuraji; particularly, OTOMO no Kanemura, who made great achievements, exerted its power for a long time.
大連は、各大王の治世ごとに親任され、雄略天皇の時代に大伴室屋と物部目が揃って大連に任じられて以後は大臣_(古代日本)とともに常設となったとされ、武烈天皇の治世に当たる6世紀前期には大伴金村と物部麁鹿火が大連に任命され、特に継体天皇擁立に功があった大伴金村が権勢を振るう時代が続いた。