As a long-time enemy of Burgundy, Louis no doubt valued the inside information Commines was able to provide, and Commines quickly became one of the king's most trusted advisers. Jean Dufournet's 1966 study of Commines has shown that the next five years, up to 1477, were the most prosperous from Commines's point of view, and the only ones when he truly had Louis's confidence. After Charles the Bold's death in 1477, the two men openly disagreed about how best to take political advantage of the situation. Commines himself admitted associating with some of the king's most prominent opponents and referred to another incident, in May 1478, when Louis reprimanded him for allegedly being open to bribery. Thereafter, much of his diplomatic work was done in the Italian arena, and he came into contact with Lorenzo de Medici on several occasions.