Families

There are many families throughout 91 Days.

Galassia Family
The Galassia Family is a powerful family that runs all of Chicago, which been at war with the Morenos, before Vincent took Don Moreno out and made peace with them, yet seven years later, Angelo Lagusa, who infiltrated the Vanettis and became Nero's right-hand man, kills Don Galassia and, under Strega's ruthless leadership, wipes out all of the Vanettis and, by extension, all mafia in Lawless, thus finishing Angelo's vengeance for him, justifying that as revenge for Ronald, who was killed prior.

Moreno Family
The Moreno Family was founded sometime before 1888 by Don Moreno. No one have seen the Don in the series' episodes, Much of the Family's history is largely unknown, but it included at least 5 or 6 members. It is suggested that they did not get along well with the Galassia Family to the point of reaching the feud phase. Their base of operations is was what would become the Vanetti Mansion. Before 1921, Orco leaves and starts his own family. It is suggested by Testa that the Families were feuding, as he first guesses that the Orco's men took out their Don.

In April of 1921, The Don and Testa Lagusa are taken out by Vincent Vanetti with the help of Ganzo Alary, who helped him to overthrow the Don's regime. They formed the Vanetti Family afterwards.

Orco Family
The Orco Family (オルコ・ファミリー, Oruko Famirī) was founded by Don Orco, who was formerly a part of the Moreno Family, but he left them due to unspecified reasons and created his own empire before the show's events, but then, during the strife with Vanettis, which was caused by Serpente's death at the hands of Vanno, which was caused by his wish to avenge Tronco and ensuing numerous attempts to kill Fango, who led a crew of 20 men and holed up at the Island, he called for peace with Vanettis, specifically Frate, in exchange for Nero's life due to the inability to fight at two fronts, but, due to Nero and Angelo's interference and cooperation with Fango, he was lured into the Lodge, ambushed by Volpe and drugged, abducted by them, brought to Fango to the Island and killed and, as a result, his family was usurped by Fango and turned into the Fango Family.

Fango Family
The Fango Family (ファンゴ・ファミリー, Fango Famirī) came into fruition, when Fango became Don of Orco Family after deposing and killing Orco and helped out Nero and Avilio for sometime, before turning on them, thanks to him secretly providing the information about the Lodge to Delphy, his failed assassination attempt on Nero's life and stealing Lawless Heaven liquor recipe from Scusa, who stole it from Delphy's confiscated evidence earlier and tried to sell it to him for overinflated price. After Fango's death at the hands of Corteo, who gave him the information about Nero's whereabouts and whom Fango was planning to rat out as the traitor, since he had no use for him, the family was mostly done for without proper leadership and possible threat of being destroyed and, by unanimous votes of its executives, was incorporated into the Vanetti Family after Nero was appointed as the Vanetti Family's Don by Vincent.