Pérez de Alesio came to Lima from Rome, accompanied by his disciple and helper Pedro Pablo Morón whom he had contracted as an apprentice in 1583. Morón was to serve him as a helper with a salary of 200 ducados for the 10 years that the contract would last. In 1593, Pérez de Alesio renewed the contract for another 2 and a half years, giving Morón three times the original agreed upon amount. He renewed the contract again for another two years in 1595.