Portugal, officially the Kingdom of Portugal, is a monarchy which will change in the year 1892, to a republic. It is located in South-Western Europe, on the Iberian Peninsula, and it is the westernmost country of mainland Europe, being bordered by the Atlantic Ocean to the west and south and by Spain to the north and east. Aside from continental Portugal, the Kingdom of Portugal holds sovereignty over the Atlantic archipelagos of Azores and Madeira, which are autonomous regions of Portugal. The country is named after its second largest city, Porto, whose Latin name was Portus Cale.