In December 19, 702, Iwayu who served as the director of Ise Province was granted "fuko 10-households," fuko means a vassal household allotted to a courtier, at the time of Emperor Jito's visit to Ise Province.
大宝(日本)2年（702年）11月22日、伊勢国国守であった石湯は持統天皇の伊勢国行幸に際し封戸10戸を下賜される。