Why was san Pedro is the flagship of legazpi expedition?

San Pedro was the flagship of the Legazpi expedition due to its role as the lead vessel in the Spanish fleet that aimed to establish a colonial presence in the Philippines in 1565. Commanded by Miguel López de Legazpi, the ship symbolized Spain's maritime power and ambitions in the Pacific. It was integral in navigating the archipelago and establishing trade routes, ultimately leading to the establishment of Manila as a key Spanish colony. The expedition marked the beginning of significant Spanish influence in the region.