Problem: The Peru-Bolivian Confederation was a short-lived state that existed in South America between 1836 and 1839. The country was a loose confederation between the states of Peru, divided into the Republic of North Peru and the Republic of South Peru, and Bolivia, with the capital located in Tacna. The Peru-Bolivian Confederation's formation was personally influenced by Marshal Andres de Santa Cruz, the President of Bolivia, who served as the first and only head of state under the title "Supreme Protector". The Peru-Bolivian Confederation was opposed by neighboring countries from its inception, particularly Chile and Argentina, as a potential military and economic threat, and for its support for dissidents in exile. The War of the Confederation was triggered shortly after its formation when Chile and Argentina independently invaded the country. Argentina was defeated in 1837, but a combined force of Chile and North Peruvian dissidents known as the United Restoration Army were victorious at the Battle of Yungay in January 1839, which de facto ended the confederation as Peru and Bolivia were restored as independent states, and Santa Cruz fled into exile. The Peru-Bolivian Confederation was officially declared dissolved on August 25, 1839, by General Agustin Gamarra after his appointment as President of Peru.

What's location was in Tacna?
Answer: the capital

question: Henry Grey matriculated at Trinity College in 1615, and was granted an M.A. that year, during the visit of King James I of England. He married Lady Anne Cecil, daughter of William Cecil, 2nd Earl of Exeter by his second wife, Elizabeth Drury. Lady Anne Cecil was the heiress of the borough and manor of Stamford. In March 1628, Henry was created Earl of Stamford. Just before the outbreak of the English Civil War, he was included as one of the opponents of King Charles I of England, and was made lord lieutenant of Leicestershire. After some operations around Leicester, he occupied Hereford, and when compelled to abandon the city, marched to Cornwall. At the Battle of Stratton, on 16 May 1643, his troops were beaten by the Royalists; driven into Exeter, the Earl of Stamford was forced to surrender the city after a siege of three months. He was certainly no general, and was charged with cowardice. He took no further part in the military operations of the war, although once or twice he was employed on other businesses. The ravages of the Royalists had reduced him to poverty, and distrusted by the House of Commons, he had great difficulty in getting any compensation from Parliament. After a period of retirement, he declared for King Charles II of England during a rising in August 1659, and was arrested, but was soon released. Henry Grey died on 21 August 1673; his earldom passed to his grandson, Thomas Grey, 2nd Earl of Stamford.
Answer this question: How many years after Henry's troops beaten by the Royalists at the Battle of Stratton did he declare for King Charles II of England during a rising and arrested?
answer:
6