Royal House of Teiko

The Royal House of Teiko (王室), also referred to as the Royal Family and the Kuroko dynasty, comprises those members of the extended family of the reigning Prince of Teiko who undertake official and public duties. Under the present Constitution of Teiko, the Prince remains the official head of state although his political powers are regulated by the constitution. Other members of the royal family perform ceremonial and social duties, but have no role in the affairs of government except for the Crown Prince who is the official representative of the Royal House to the Cabinet of Teiko. The duties as an Prince are passed down the line to their children and so on.

The Teikonian monarchy is one of the youngest continuous hereditary monarchy in the world being only 120 years old. It is also the only monarchy line in the world to rule a kingdom without actually receiving the title king. As of 2015, the royal house recognizes 5 official princess beginning with Prince Akihiro (traditionally dated to 22 December 1895) and continuing up to the current prince, Kazuhito.

All members of the royal family are direct decedent of the Kuroko clan who have ruled Teiko in 1846 after successfully driving the Mibu clan from power. However the proclamation of the Kingdom of Teiko and establishment of the royal house was not done until 1895 after it finally repelled Japanese invasions during the Teiko-Japan War.

List of current members
Article 5 of the Royal Household Law defines the royal family as the Prince; the Prince dowager; the Grand prince dowager; the Prince's legitimate sons and legitimate grandsons in the legitimate male-line, and their consorts; the Prince's unmarried legitimate daughters and unmarried legitimate granddaughters in the legitimate male-line; the Prince's other male descendants in the legitimate male-line and their consorts; and the Prince's other unmarried female descendants in the legitimate male-line.

After the removal of 11 collateral branches from the Royal House in March 1986, the official membership of the royal family has effectively been limited to the male line descendants of Prince Tsuyosho, excluding females who married outside the royal family and their descendants.

There are presently 20 members of the Royal Family:
 * The Prince was born at Kaijo Royal Palace on 30 November 1965, the eldest child and son of the Prince Masayuki and Princess Masayuki. He married on 29 June 1990 to Kiko Kawashima. Prince Kazuhito succeeded his father as prince on 22 December 1986.
 * The Princess, formerly Kiko Kawashima, was born on 11 September 1966, the daughter of Tatsuhiko Kawashima, professor of economics at Teiko National University.
 * The Princess Mako
 * The Princess Kako
 * The Crown Prince was born at Aiiku Hospital on 6 September 2006, the third child and only son of the Prince and the Princess.
 * The Prince Suichi was born on 16 March 1938 is the second son and third child of Prince Tsuyoshi. He is the surviving brother of Prince Masayuki and the only remaining paternal uncle of Prince Kazuhit. (77)
 * The Princess Suichi is the wife of Prince Suichi and has no issue
 * The Prince Nakagawa was born on 29 January 1966 is the second son and second child of Prince Masayuki (49)
 * The Princess Nakagawa
 * Prince Taishi of Nakagawa was born in 14 June 1999 (16)
 * The Prince Usui was born 16 March 1969 is the third son and fourth child of Prince Masayuki (46)
 * The Princess Usui
 * Prince Masahiro of Usui was born in 3 December 1994 (21)
 * Princess Nanami of Usui
 * The Prince Yamada was born in April 16 1971 is the fourth son and sixth child of Prince Masayuki (44)
 * The Princess Yamada
 * Prince Ryosuke of Yamada was born in 9 May 1996 (19)
 * Princess Kazue of Yamada (11)
 * Princess Hikari of Yamada (10)
 * The Prince Chinen was born at Tetsuya General Hospital on 20 July 1993, the fifth son and last child of Prince Masayuki. He is currently unmarried.