The Three and Four Musketeers query

There's over 50 films in the "franchise" going back well into the 1920s, and I'm confused as to where to start. I remember watching some of them when I was a kid, mainly the man in the iron mask, the four musketeers 1975, three musketeers 2011, and a few others, but is there a continuous storyline? And where should I pick up if I wanted to start watching them? Should I go back to the 70s? Start in the 90s? Or go back to the 1920s??? I don't really care for old films like pre 1960s if I'm being 100% honest (I know, not very Kino-connoisseur of me).

Where would you guys start?