They were perpetuated in customs, and expressed themselves in the most trivial details.

Banners, ensigns, and heraldic colors followed the divisions of the factions.

Ghibellines wore the feathers in their caps upon one side, Guelfs upon the other.

Ghibellines cut fruit at table crosswise, Guelfs straight down.

In Bergamo some Calabrians were murdered by their host, who discovered from their way of slicing garlic that they sided with the hostile party.