Duchy of Milan
Gian Galeazzo
Charismatic, Creative

Milan led by Gian Galeazzo[1] is a custom civilization by JFD and Janboruta[2], with contributions from Sukritact and Wolfdog.

This mod requires Brave New World. It replaces the City-State of Milan with San Marino.



The Duchy of Milan was a constituent state of the Holy Roman Empire in northern Italy. It was created in 1395, when it included twenty-six towns and the wide rural area of the middle Padan Plain east of the hills of Montferrat. During much of its existence, it was wedged between Savoy to the west, Venice to the east, the Swiss Confederacy to the north, and separated from the Mediterranean by Genoa to the south. The Duchy eventually fell to Habsburg Austria with the Treaty of Baden (1714), concluding the War of the Spanish Succession. The Duchy remained an Austrian possession until 1796, when a French army under Napoleon Bonaparte conquered it, and it ceased to exist a year later as a result of the Treaty of Campo Formio, when Austria ceded it to the new Cisalpine Republic.

Gian Galeazzo

Gian Galeazzo Visconti, son of Galeazzo II Visconti and Bianca of Savoy, was the first Duke of Milan (1395) and ruled the late-medieval city just before the dawn of the Renaissance. He was the great founding patron of the Certosa di Pavia, completing the Visconti Castle at Pavia begun by his father and furthering work on the Duomo of Milan.

Dawn of Man

Prestigious lord of the noble House of Visconti, the loyal denizens of the great and ancient Milan speak your praises. You ruled the city of Milan at the dawning of the Renaissance, and elevated its status from a mere Lordship to an esteemed Duchy. A great patron of arts and home to immeasurable wealth, Milan would exist as one of the cultural centres of Italy for some 200 years, and its legacy for countless more.

Noble Lord, the great city of Milan beckons your leadership to bring upon her a great wealth of coin and culture. Can you fill her ancient vaults with gold and art beyond comparison? Can you build a civilization that can stand the test of time?

Visconti diplo

Leaderscene by sukritact

Introduction: Greetings. I am Gian Galeazzo, Lord of Visconti Milan. From what wanting realm do you come?

Defeat: Fine then. Take my great wealth. But know you will never be able to spend it as wisely as I.



Unique Attributes

Milan (Gian Galeazzo)

Art by janboruta

House of Visconti

Friendly and Allied Citystate City-States reduce the cost of purchasing items with Gold Gold (up to 30%). During war, Influence City-State Influence degrades 20% slower.


Art by janboruta

Ribault (Gatling Gun)

Unlocked at Economics. May attack twice per turn. +33% Strength Combat Strength vs Siege units. +8% Production Production Cost. -10 Strength Combat Strength, -10 Strength Ranged Strength.


Art by sukritact

Palazzo (Bank)

Generates Greatperson Great Merchant points equal to 10% of the city's Gold Gold output. +4 Strength City Strength. Grants double Gold Gold to City Plunder if the City is captured.


Peace Theme War Theme
Duchy of Milan - Gian Galeazzo02:35

Duchy of Milan - Gian Galeazzo

Duchy of Milan - Gian Galeazzo War02:29

Duchy of Milan - Gian Galeazzo War

'Florence' by Andreas Waldetoft 'Florence' by Andreas Waldetoft

Mod Support

Events and Decisions

Charter Mercenary Company

A Mercenary Company from one of our allied City-States has proposed to us a unique contract. An army composed of one X unit and two Y units would be at our disposal, should we be willing to pay the price for their service and equipment.


  • Player must be Milan
  • Player must have at least one friendly City-State
  • May only be enacted once per era


  • Gold Gold (The Gold cost is reduced by the number of City-State friends you have)


  • Gain an army composed of 1 X unit and 2 Y units, which begin with a 20% Strength combat bonus in foreign lands

Note: The units offered change each era, and will feature a UU

Establish the Ambrosian Republic

The uncertainty that comes of ruling a Duchy is a weakness in our nation's armour. But a republic - now therein can be found security for our ruling dynasty; for coin is most certainly thicker than blood.


  • Player must be Milan
  • May only be enacted from the beginning of the Renaissance Era
  • May only be enacted once per game


  • 1200 Gold Gold
  • Magistrates Magistrate


  • Grants all policies from the Liberty branch
  • Gain 1 Magistrates Magistrate for every Liberty policy that you already possess
  • Your empire becomes known as The Ambrosian Republic

Guelph-Ghibelle Feud

The long-standing feud between the noble Houses of Guelph and Ghibelle have finally reached boiling point. We must step in and take sides, lest their discord bring the very country to civil war.

Option 1: Support the pious Guelphs.

  • 50% chance that Ghibelle Mercenaries will appear
  • Gain 123 FaithIcon Faith (or 23 Piety Piety)

Option 2: Support the prestigious Ghibelles

  • 50% chance that Guelph Mercenaries will appear
  • Gain 152 Goldenage Golden Age points

Treatise by Machiavelli

Throughout the court, our courtiers are speaking on a treatise written by the great philosopher Machiavelli, in which he praises our methods to secure our rule over Milan. He has, however, criticized us for relying too much upon mercenary troops, and he warns us that they only serve to de-legitimize our government.

Option 1: Bah! What does he know? Mercenaries are the best.

  • No result

Option 2: We shall see to it that a standing army is put in place of mercenaries then.

  • Charter Mercenary Company may no longer be enacted
  • Receive 4 free Military Units
  • 4 Military Units become maintenance free

Unique Cultural Influence

"Our people are now leaving their savings in your banks and touring your monumental cathedrals. We're content if the rest of the world will also succumb to the influence of your culture."

Full Credits List

  • JFD: Author 
  • Sukritact: Artwork (Leaderscene, Map, Palazzo) 
  • Janboruta: Artwork (Leader Icon, Ribault) 
  • Wolfdog: Graphics 
  • Andreas Waldeloft: Music 

Notes and References

  1. The Duchy of Milan
  2. JFD's Civilisations
JFD and Janboruta's Civilizations
Afonso IAleksandr NevskyAlexios I KomnenosAlfredBrian BoruCharlemagneGediminasHaakon HaakonssonInnocent IIIIngolfur ArnarsonJustinian IMargaretheStefan DusanStephen ITiridates IIIVaclav IIWilliam IVlad III
Charles VChristian IVGian GaleazzoHenry VIIIIvan IVJames VILouis XIVMehmed IIPhilip IIPhilip IIISigismund II
Ahmad Shah DurraniAlexander IDufourFerdinand IFrederickFrederick Augustus IJoseph IIKarl XIIPeter I
Brigham YoungLincolnLudwig IIMeijiOscar IIPius IXVictor Emmanuel IIVictoria
Albert IClemenceauGeorge VLeninNicholas IIVictor Emmanuel III
StalinChurchillRooseveltMussoliniHitlerTojoCharles de GaullePilsudski
Jigme Dorji WangchuckPutin
Ali ibn al-HassanSaladinSaif bin SultanSeddonBulanEriRobrecht III

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