The Second Shō dynasty (第二尚氏王朝, daini Shō-shi ō-chō) was the last dynasty of the Ryukyu Kingdom from 1469 to 1879, ruled by the Second Shō family (第二尚氏, daini Shō-shi) under the title of King of Chūzan. This family took the family name from the earlier rulers of the kingdom, the first Shō family, even though the new royal family has no blood relation to the previous one. Until the abolition of Japanese peerage in 1947, the head of the family was given the rank of marquess while several cadet branches held the title of baron.