The mysterious Lepidus

[Nathan Ross]

I'm still curious about his lack of rebellion against Octavian, though.

He did try to, but left it too late. Have a look at Book 5 of Appian's Civil War, and there's a lengthy description. Octavian basically undermined Lepidus's control over his own troops, then forced a coup. There was bloodshed (Octavian attacked and killed a group of Lepidus's men who had 'jeered' at him), but Lepidus wasn't left with enough loyal troops to offer any effective resistance to the Octavian takeover.

I'd provide a quote, but still can't access Lacus Curtius, which is the handiest online source...