Three pontifical commissions were successively charged to elaborate the text of the edition of the Vulgate for which the Council of Trent had requested publication. Up until the commissions of Pius V and Sixtus V, the work was done without any coordination. After Sixtus V's death in 1590, two other commissions were organised, one after the other, under Gregory XIV in 1591. In 1561, Pius IV created a commission at Rome composed of four cardinals: Amulio, Morone, Scotti and Vitelli. This committee had only a very general role: to correct and print the ecclesiastical books which the Holy See had decided to reform or publish. In 1566 or 1569, another commission was appointed by Pope Pius V ("Congregatio pro emendatione Bibliorum") to produce an official edition of the Vulgate. This commission was composed of five cardinals (M. A. Colonna, G. Sirleto, C. Madruzzo, J. Souchier, and Antonio Carafa) and twelve advisors. Gregory XIII did not appoint a commission for the Vulgate, and soon Gugliemo Sirleto "was the only one remaining to take care of the revision" of the Vulgate in Rome. Gregory XIII issued a commission for the emendation of the LXX after being convinced to do so by Cardinal Montalto (the future Sixtus V). Thomson states that the commission working on the Vulgate had to stop its work to instead work on the edition of the Septuagint. The work on this edition was finished in 1586 and the edition, known as the Roman Septuagint, was published the next year. This edition of the Septuagint was done to assist the revisers of the Latin Vulgate. At the time Sixtus V became pope, in 1585, work on the edition of the Vulgate had barely begun. In 1586, Sixtus V appointed a commission. The commission was under the presidency of Cardinal Carafa, and was composed of Flaminius Nobilius, Antonius Agellius, Lelio Landi, Bartholomew Valverde, and Petrus Morinus. They were helped by Fulvio Orsini. The commission worked on the basis of the 1583 edition by Franciscus Lucas Brugensis of the Leuven Vulgate and "[g]ood manuscripts were used as authorities, including notably the Codex Amiatinus."