These American settlers established a permanent foothold in the area and ignored Spanish officials. The British settlers who had remained also resented Spanish rule, leading to a rebellion in 1810 and the establishment for ninety days of the so-called Free and Independent Republic of West Florida on September 23. After meetings beginning in June, rebels overcame the <answer>Spanish garrison at Baton Rouge</answer> (now in Louisiana), and unfurled the flag of the new republic: a single white star on a blue field. This flag would later become known as the "Bonnie Blue Flag".
What did the rebels overthrow during the rebellion
Spanish garrison at Baton Rouge