According to the article, with the story that TAKATA no Tarito was jailed for a charge and his fuko were confiscated, it is said that Tarito's grandfather was Syuto in Mino Province and he devoted Koga (horse for the Emperor, the word can also imply the Emperor itself) by his own horse to Mino and Owari Provinces, then the Emperor praised his behavior, gave him fuko and let him hand them down to his children.
そこには高田足人が罪により投獄され封戸を没収されたこととともに、「足人の祖父は美濃国の主稲で、壬申の兵乱に際して自分の馬で皇駕（天皇が乗る馬。天皇その人を間接的に指す）を美濃・尾張国に奉じた。天皇はこれを賞して封戸を与え子に伝えさせた」とある。