However, many of the family heads of both the Owari Tokugawa and Takasu Matsudaira families were short-lived; therefore, Yoshinao's direct male descendants died out in the Owari Tokugawa family in 1799, and in the Takasu Matsudaira family in 1801.
しかし、共に短命の藩主が多く、1799年に尾張德川家、その1801年には高須松平家で、義直の男系子孫は断絶してしまう。