After the death of Suzuka no Okimi, his sons, Isumoo (the Prince Izumo) and Enchio (the Prince Enchi) were both granted the family name of Toyono Mahito and demoted to the status of subject.
鈴鹿王の没後、王の子である出雲王・奄智王らはいずれも豊野真人の氏姓を賜り、臣籍降下した。