Matilda of Tuscany in the context of "Florentine Republic"

The Republic of Florence (Latin: Res publica Florentina; Old Italian: Republica di Fiorenza), known officially as the Florentine Republic, was a medieval and early modern state that was centered on the Italian city of Florence in Tuscany, Italy. The republic originated in 1115, when the Florentine people rebelled against the Margraviate of Tuscany upon the death of Matilda of Tuscany, who controlled vast territories that included Florence. The Florentines formed a commune in Rabodo's (Matilda’s successor) successors' place. The republic was ruled by a council known as the Signoria of Florence. The signoria was chosen by the gonfaloniere (titular ruler of the city), who was elected every two months by Florentine guild members.

During the Republic's history, Florence was an important cultural, economic, political and artistic force in Europe. Its coin, the florin, was the dominant trade coin of Western Europe for large scale transactions and became widely imitated throughout the continent. During the Republican period, Florence was also the birthplace of the Renaissance, which is considered a fervent period of European cultural, artistic, political and economic "rebirth".

The Road to Canossa or Humiliation of Canossa (Italian: L'umiliazione di Canossa), or, sometimes, the Walk to Canossa (German: Gang nach Canossa/Kanossa) was the journey of the Holy Roman Emperor Henry IV to Canossa Castle in 1077, and his subsequent ritual submission there to Pope Gregory VII. It took place during the Investiture controversy and involved the Emperor seeking absolution and the revocation of his excommunication by the Pope who had been staying at the castle as the guest of Margravine Matilda of Tuscany.

According to contemporary sources, he was forced to supplicate on his knees, waiting for three days and nights before the castle gate while a blizzard raged, "one of the most dramatic moments of the Middle Ages". The episode has spurred much debate among medieval chroniclers as well as modern historians, who dispute whether the walk was a humiliating defeat for the emperor or a "brilliant masterstroke".

Adelaide of Susa (also Adelheid, Adelais, or Adeline; c. 1014/1020 – 19 December 1091) was the countess of part of the March of Ivrea and the Marchioness of Turin in Northwestern Italy from 1034 to her death. She was the last of the Arduinici. She is sometimes compared to her second cousin and close contemporary, Matilda of Tuscany.