None. There are two brief welcome home kisses and a couple of almost kisses that get interrupted in the wedding rehearsal.

There are two fights, one which leads to a death. It shows no blood though. This is quite mild by today's standards.

One person commits suicide by gun: we see him get a gun out, and then we hear the shot without seeing the weapon fire and without seeing the body or blood.

There is no profanity.

The people of that time always drank wine with meals and did so in the movie. There is a scene in a tavern where the 3 protagonists are scheming against Edmond Dante, and they are presumably drinking alcohol; although there is no drunkeness depicted.

A man is arrested and held for years without a trial under distressing prison conditions (rats, roaches, filth, and solitary confinement). There is a distressing scene when he realizes he'll probably never leave the hellish prison, and he makes a blood-curdling scream. He plots revenge without mercy. One person commits suicide by gun: we see him get a gun out, and then we hear the shot without seeing the weapon fire and without seeing the body or blood.