In the conclave that followed the two great parties among the cardinals were the French and the Austro-Spanish, neither of which, however, was strong enough to procure the election of its nominee. After a struggle lasting three months Cardinal Giovanni Angelo de' Medici, who was more or less neutral, was elected by acclamation. He was proclaimed under the title of Pius IV. (1559-65). The new Pope had nothing of the stern morose temperament of his predecessor. He was of a mild disposition, something of a scholar himself, inclined to act as a patron towards literature and art, and anxious to forward the interests of religion by kindness rather than by severity. He was determined to proceed with the work of the council at all costs, and as a first step in that direction he devoted all his energies to the establishment of friendly relations with the Emperor Ferdinand I. and with Spain. In all his schemes for reform he was supported loyally by his nephew, Charles Borromeo, whom he created cardinal, and to whom he entrusted the work of preparing the measures that should be submitted to the future council. When all arrangements had been made the Bull of re-convocation, summoning the bishops to meet at Trent at Easter 1561, was published in November 1560. Though not expressly stated in the document, yet it was implied clearly enough that the assembly was not to be a new council but only the continuation of the Council of Trent. This was not satisfactory to France, which demanded a revision of some of the decrees passed at Trent, and which objected strongly to the selection of Trent as the meeting-place. The Emperor Ferdinand I. and Philip II. expressed their anxiety to further the project of the Pope. Delegates were sent from Rome to interview the Lutheran princes and theologians, but only to meet everywhere with sharp rebuffs. In an assembly held at Naumburg in 1561 the Lutherans refused to attend the council, unless they were admitted on their own terms, while many of the Catholic princes and bishops showed no enthusiasm to respond to the papal convocation. When the legates arrived to open the council they found so few bishops in attendance that nothing could be done except to prepare the subjects that should be submitted for discussion.