The eldest son of Ietada MATSUDAIRA (Katahara Matsudaira family) who was the fifth family head of Katahara Matsudaira family (Ietada MATSUDAIRA famous for the 'Ietada Nikki' [Diary of Ietada MATSUDAIRA] is the fourth family head of Fukozu Matsudaira family and is a different person with the same name).
形原松平家第5代当主である松平家忠(形原松平家)の長男（「家忠日記」で有名な松平家忠は深溝松平家第4代当主であり、同姓同名の別人）。