Due to conflict Norimichi had with Takahiro KYOGOKU, the lord of the Miyazu Domain in Tango province, in 1648, a rumor began circulating that he was plotting a rebellion.
慶安元年（1648年）には丹後国宮津藩主・京極高広との間に諍いを起こし、それが原因で紀通が謀反を企んでいるという風聞が流れた。