Sao Martinho (meaning Saint Martin) built as a Portuguese Navy galleon became the flagship of Duke of Medina Sedonia commander-in-chief of the Spanish Armada.When the Kingdom of Portugal came under the rule of King Philip II of Spain (Philip I of Portugal) in 1580 the Portuguese had just finished building a large galleon named Sao Martinho. She was known by Castilians as San Martin. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Mean Of Transportation