FUJIWARA no Hirotsugu, the eldest son of Umakai and was demoted to Dazai no shoni (Junior Assistant Governor-General of Dazai-fu offices) after his father's death, rose in revolt in Kyushu, known as the Rebellion of FUJIWARA no Hirotsugu in 740, but was killed in defeat.
さらに直後に大宰少弐に左遷された宇合の長男藤原広嗣は天平12年（740年）九州にて反乱を起こしたが、敗死してしまった（藤原広嗣の乱）。