When Emperor Monmu died on June 15th, 707, HAJI no Sukune Umate who was promoted to Shogoinojo (Senior Fifth Rank, Upper Grade) on October 3rd, was appointed as the Imperial envoy to Tusukuriyama no Misasagi along with SHIMOTSUKENU no Komaro, TAMI no Hirao, and ISONOKAMI no Toyoniwa.
慶雲4年（707年）6月15日に文武天皇が死ぬと、10月3日に正五位上土師宿祢馬手が、下毛古麻呂（下毛野古麻呂）、民比良夫、石上豊庭、藤原房前とともに造山陵使に任じられた。