- Japanese: 一条 忠香 (Ichijô Tadaka)
Ichijô Tadaka was a court noble of the Bakumatsu period. He was named Naidaijin in 1858, following Sanjô Sanetsumu's retirement, and was reassigned to the position of Sadaijin the following year.
One of his daughters, Ichijô Haruko, married the Meiji Emperor in 1867 and became known as Empress Shôken. His adopted daughter Ichijô Mikako married Tokugawa Yoshinobu, head of the Hitotsubashi family, in 1855, before circumstances led to him becoming shogun in 1867.
- Ishin Shiryô Kôyô 維新史料綱要, vol 2, 531.
- Ishin Shiryô Kôyô 維新史料綱要, vol 3 (1937), 155.
- Sven Saaler, "Public Statuary and Nationalism in Modern and Contemporary Japan," Asia-Pacific Journal: Japan Focus 15:20:3 (Oct 15, 2017), 6.
- Ishin Shiryô Kôyô 維新史料綱要, vol 1 (1937), 414.; Ishin Shiryô Kôyô 維新史料綱要, vol 2, 147.