page_title: Republic of Massa
section_title: Economic rise of Massa and the league with the Republic of Siena
hierarchical_section_title: Republic of Massa / History / Economic rise of Massa and the league with the Republic of Siena
caption_attribution_description: Palazzo pretorio di massa marittima, stemmi
context_page_description: The Republic of Massa di Maremma was an independent state that existed from 1225 to 1336. It was founded in today's city of Massa Marittima and expanded to cover an area corresponding to the current upper Maremma.
  It represented a commercial power of regional level, through its thriving mining district, thanks to the copper, alum and silver deposits of which its territory was rich.
context_section_description: From 1241 the political balance of the city brought the Massetana Republic to a progressive approach to the Republic of Siena, sanctioned by an official alliance between the two. Massa Marittima lived up to the agreements and in 1260 supported its friend Siena at the battle of Monteaperti, with a contingent of 100 soldiers. The Massetano-Sienese alliance then became a real offensive and defensive league, starting on March 16, 1264.
  The same year the armies, Sienese and Massetano, marched together on Campiglia Marittima, which had rebelled in Siena.
  The political clash between the Ghibellines and Massa's Guelphs led the Republic of Siena to erect itself as guarantor of the inner peace of the city, shaken by strong conflicts between the noble Pannocchieschi family and the municipality. In 1276 a large alliance treaty was thus reached, in which it was established, among other things, that Massa should be governed, for twenty years, by Sienese podestàs
  The Republic of Massa participated in the Guelph coalition formed by Florence and Siena to attack the city of Arezzo, guilty of having driven the Guelph exponents from its territory. After attacking various minor castles and besieging Arezzo, the Sienese and Massa army, strong with 3,000 infantrymen and 400 cavalrymen, was defeated by the Aretine army at the Giostre del Toppo on 26 June 1288. Massa, however, managed to avenge this defeat with the victory of Campaldino the following year, where the Guelph coalition defeated the Ghibelline army led by Arezzo.
  In 1313 Republic of Massa supported the Republic of Siena in a military action in the Pisan territory up to Piombino to free the ally Lucca, which was then part of the Guelph league, from the siege led by Uguccione della Faggiola.
caption: The rampant lion of Massa (right) and the balzana of Siena (left) on the Palazzo del Podestà, to symbolize the league between the two republics
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