Portugal had been without a king since the year 1807 when the royal family had fled to the colonies in Brazil. The country had been used as a base of supply for the armies of Wellington during the Peninsula war, which lasted from 1808 until 1814. After 1815 Portugal continued to be a sort of British province until the house of Braganza returned to the throne, leaving one of its members behind in Rio de Janeiro as Emperor of Brazil, the only American Empire which lasted for more than a few years, and which came to an end in 1889 when the country became a republic.