Duchy of Mantua
Overview
 
The Duchy of Mantua
Mantua
Mantua is a city and comune in Lombardy, Italy and capital of the province of the same name. Mantua's historic power and influence under the Gonzaga family, made it one of the main artistic, cultural and notably musical hubs of Northern Italy and the country as a whole...

was a duchy
Duchy
A duchy is a territory, fief, or domain ruled by a duke or duchess.Some duchies were sovereign in areas that would become unified realms only during the Modern era . In contrast, others were subordinate districts of those kingdoms that unified either partially or completely during the Medieval era...

 in Lombardy
Lombardy
Lombardy is one of the 20 regions of Italy. The capital is Milan. One-sixth of Italy's population lives in Lombardy and about one fifth of Italy's GDP is produced in this region, making it the most populous and richest region in the country and one of the richest in the whole of Europe...

, Northern Italy
Northern Italy
Northern Italy is a wide cultural, historical and geographical definition, without any administrative usage, used to indicate the northern part of the Italian state, also referred as Settentrione or Alta Italia...

, subject to the Holy Roman Empire
Holy Roman Empire
The Holy Roman Empire was a realm that existed from 962 to 1806 in Central Europe.It was ruled by the Holy Roman Emperor. Its character changed during the Middle Ages and the Early Modern period, when the power of the emperor gradually weakened in favour of the princes...

.
After the fall of the Western Roman Empire
Western Roman Empire
The Western Roman Empire was the western half of the Roman Empire after its division by Diocletian in 285; the other half of the Roman Empire was the Eastern Roman Empire, commonly referred to today as the Byzantine Empire....

, Mantua was invaded by Byzantines
Byzantine Empire
The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

, Longobards and Franks
Franks
The Franks were a confederation of Germanic tribes first attested in the third century AD as living north and east of the Lower Rhine River. From the third to fifth centuries some Franks raided Roman territory while other Franks joined the Roman troops in Gaul. Only the Salian Franks formed a...

. In the 11th century it became a possession of Boniface of Canossa, marquis
Marquis
Marquis is a French and Scottish title of nobility. The English equivalent is Marquess, while in German, it is Markgraf.It may also refer to:Persons:...

 of Toscana. The last ruler of the family was the countess Matilde of Canossa
Matilda of Tuscany
Matilda of Tuscany was an Italian noblewoman, the principal Italian supporter of Pope Gregory VII during the Investiture Controversy. She is one of the few medieval women to be remembered for her military accomplishments...

 (died 1115), who, according to legend, ordered the construction of the precious Rotonda di San Lorenzo
Rotonda di San Lorenzo
The Rotonda di San Lorenzo is a religious building in Mantua, Lombardy .It is the most ancient church in the city, having been built during the reign of the Canossa family in the late 11th century. Inspired by the Holy Sepulchre church in Jerusalem and dedicated to the martyr St...

 (1082). After the death of Matilde of Canossa, Mantua became a free
Free Imperial City
In the Holy Roman Empire, a free imperial city was a city formally ruled by the emperor only — as opposed to the majority of cities in the Empire, which were governed by one of the many princes of the Empire, such as dukes or prince-bishops...

 commune
Medieval commune
Medieval communes in the European Middle Ages had sworn allegiances of mutual defense among the citizens of a town or city. They took many forms, and varied widely in organization and makeup. Communes are first recorded in the late 11th and early 12th centuries, thereafter becoming a widespread...

 and strenuously defended itself from the Holy Roman Empire
Holy Roman Empire
The Holy Roman Empire was a realm that existed from 962 to 1806 in Central Europe.It was ruled by the Holy Roman Emperor. Its character changed during the Middle Ages and the Early Modern period, when the power of the emperor gradually weakened in favour of the princes...

 in the 12th and 13th centuries.

During the Investiture Controversy
Investiture Controversy
The Investiture Controversy or Investiture Contest was the most significant conflict between Church and state in medieval Europe. In the 11th and 12th centuries, a series of Popes challenged the authority of European monarchies over control of appointments, or investitures, of church officials such...

, Pinamonte Bonacolsi took advantage of the chaotic situation to seize power — as Captain General of the People — in 1273.
 
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