In 708, at the Daijosai (a festival to celebrate the succession of an emperor) of the Empress Genmei, Michiyo was praised for serving the Imperial court since the era of the Emperor Tenmu and was given the kabane (hereditary title) of TACHIBANA no Sukune commemorated with a tachibana (mandarin orange) floating in a cup, which made her effectively the founder of the Tachibana clan.
708年（和銅元年）元明天皇の大嘗祭のとき、天武天皇の時代から仕えていることを称されて杯に浮かぶ橘とともに橘宿禰の姓を賜り、橘氏の実質上の祖となった。