john william pitt kīnaʻu (december 21/27, 1842 – september 9, 1859) was a prince of the kingdom of hawaii and the only surviving son of high chief william pitt leleiohoku i and ruth keʻelikōlani. as a descendant of king kamehameha i, he was chosen to attend the chiefs' children's school (later renamed royal school) taught by the american missionary amos starr cooke and his wife, juliette montague cooke, alongside fifteen of his royal cousins. at a young age, he inherited the landholdings of his father and his adoptive grandfather including huliheʻe palace, but the prince died under mysterious circumstances before his seventeenth birthday.