The new governors repaired to Santo Domingo to prepare the expeditionary flotillas. There was a great disparity between the two flotillas. As Nicuesa was wealthier and had better credit with the colonial authorities he was able to attract 800 men, many horses, five caravels and two brigs. While Ojeda’s flotilla only consisted of a little more than 300 men, two brigs and two smaller ships. Among those who embarked on these four vessels was Francisco Pizarro, the future conqueror of Peru. Hernán Cortés, who was later to dominate Mexico, would have been among the soldiers of fortune engaged in this adventure, had a sudden illness not prevented him from sailing. Due to the disputes regarding the extent of each of the two governorates, Juan de la Cosa decided that the River Atrato would form the boundary between the two regions.