Interregnum 1383-1385
House of Aviz[?] 1385-1580
Habsburg
House of Braganza[?] 1640-1807
House of Braganza, Restored 1814-1910
The chronology continues on Presidents of Portugal
See also: History of Portugal -- Lists of incumbents
... Most would include in all computer systems obligatory mechanisms controlling use in ways deemed by copyright holders to be unacceptable. See Professor Edward Felten's ...