Final answer:
No specific event involving Anne of Brittany is documented to have occurred on 15th November 1491. Historical records and the information provided do not detail any actions by Anne on this date. Anne of Brittany was an influential figure as twice Queen of France, but the date in question does not correspond with known significant events of her life.
Step-by-step explanation:
On 15th November 1491, Anne of Brittany, also known as Anne de Bretagne, did not engage in any specific historical event that is widely recognized or recorded in historical documents. The information provided does not mention any particular action taken by Anne of Brittany on this date. Instead, the details suggest a mixture of different historical events and figures, such as the Treaty of Zaragoza, the rule of Elizabeth I, the St. Bartholomew's Day Massacre, the progression of the English Reformation under Henry VIII, and various colonial developments in North America like Queen Anne's War and the first English marriage in America. None of these instances directly relates to Anne of Brittany's activities on the given date.
It's important to clarify the historical context surrounding Anne of Brittany. She was a key figure in Breton and French history, noted for her two marriages which made her both Queen of France and Duchess of Brittany. Her first marriage was to Charles VIII of France, and her second was to his successor, Louis XII. Her role in uniting Brittany with the French crown was significant, but no notable event involving Anne specifically occurred on November 15, 1491, based on the information provided and prominent historical records.