徳川斉昭
In August 1873, Matsudaira Moriyuki, the 22nd son of Tokugawa Nariaki, former "daimyō" of Moriyama Domain and imperial governor of Matsukawa, died. Nobuyuki dissolved his adoption tie to Katamori, which allowed him to posthumously be adopted by Moriyuki, becoming the 9th chieftain of the Moriyama-Matsudaira clan. On October 12, 1876 he departed Yokohama for France, where he studied until June 1879. On July 8, 1884, he was ennobled with the title of viscount ("shishaku") under the new "kazoku" peerage system. He died on June 3, 1891 without heir. His title was inherited by Matsudaira Yorihira (1858-1929), the third son of Matsudaira Yoritaka, formerly of Shishido Domain. His grave is at the Yanaka Cemetery in Tokyo.