Modena and Reggio rebelled in 1306 over an attempt to assign them to Beatrice as part of the bride price, a custom that had been superseded in Italy by the dowry.
The cities of Modena and Reggio rose up in 1306 against an attempt to use them as part of the dowry for Beatrice, a practice that had fallen out of favor in Italy and was now being revived through the bride price.