The Böhler Madonna was created around 1313 at the Court of the Holy Roman Emperor Henry VII in Pisa.
The Ghibelline city of Pisa, sympathetic to the emperor, was one of the most important maritime strongholds in Italy in the Middle Ages. It faced fierce competition from Genoa and was later entangled in a serious power struggle with the Guelphs in Florence who sided with the pope. The city had anticipated that its status within Italy as a whole would be strengthened through the arrival of the Holy Roman Emperor Henry VII in 1312. However, his sudden death in 1313 dashed any such hopes. The imperial condottiero, Uguccione della Faggiola, briefly filled the resultant power vacuum. He conquered the city of Lucca that was sympathetic to the pope and defeated the Florentines at the Battle of Montecatini in 1315.
The Guelphs chose the lily as their heraldic symbol, based on Capetian Charles of Anjou’s coat of arms. The Ghibellines, on the other hand, adopted the imperial eagle.
Battle of Montaperti, detail.
Wikipedia, in the public domain