Toshihiro became shugodai of four upper districts of Owari (namely Kasugai County, Niwa County, Haguri County and Nakajima County. At first, 'the Oda Isenokami family' governed Haguri County, Niwa County, much of Yamada County [later divided and integrated into Kasugai and Nakajima Counties], Kasugai County, Kaisai County and Aichi County [Aichi Prefecture] except Nagoya).
尾張上四郡（春日井郡、丹羽郡、葉栗郡、中島郡のこと、最初「伊勢守家」は葉栗郡・丹羽郡と山田郡（のち春日井郡、中島郡へ分割編入）の大半と春日井郡・海西郡と那古野を除く愛知郡(愛知県)）の守護代となる。