[1] After attending Gakushuin and the First Higher School, Matsudaira studied law and politics at Tokyo Imperial University.

[1] After he was called back to Japan in 1928, the Empress Dowager Sadako arranged for his daughter Setsuko to marry her second son Prince Chichibu.

[1] After the Lord Keeper of the Privy Seal Makoto Saito was assassinated in the February 26 incident of 1936, the Minister of the Imperial Household Kurahei Yuasa was appointed to succeed him.

He served in this position until June 1945, when he resigned to take responsibility for the destruction of a part of the Imperial Palace in the American firebombing of Tokyo.

[4] When the Ichiro Hatoyama was purged on the verge on becoming prime minister following the 1946 general election Matsudaira was considered as a candidate to replace him, but Shigeru Yoshida was chosen instead.