Gattuso, one of Milan's working class midfielders had a wisecrack which was like "Real Madrid won most of their trophies when my grandmom was a teenager' Honestly when they say 10 European Cups, 6 of them came in a period when they were the only team who afforded the highest paying wages in Football and most others still had amateurs. They bought whoever from Ferenc Puskas, to Di Stefano, beat clubs who sent in weaker teams because they were still not convinced of the credibitliy of an European Cup and focused on the traditional domestic competitions instead.
In all honestly this is their 3rd European trophy in the Champions League era. If there is a club who are actually the most amount of time winners of the European Cup its Milan. They won the tournament maximum times when it finally gained some credibitlity and constituted of teams who were fiercely competitive at a standard level.