Some of them are very old friends of mine and still live in Belgioioso, the village close to Pavia where I live.
Among my colleagues in the Math Dept I have a number of friends too.
Also in the CAI (Club Alpino Italiano) I have some friends.
Many persons that I knew when I was a student in the Collegio Ghislieri still are friends of mine. A number of them belongs to the group named PQS, nickname for "Pii Quinti Sodales".