My cousins named all their chiedren with a name starting with M.
Most people have rules when it comes to naming.
My mother named all of us by taking a name from a someone one generation older, the 2nd name from somone several generations older and 3rd name from the bible for some odd reason, we aren't very religious at all so that is a bit odd.
I also know another family that decided for one male and one female name for each of their children and they got the one that didn't match their names as their 2nd name.
Another family i know named their children Simon, Simone and Simona. That had to be confusing.