Infanta Isabel Maria of Braganza was a Portuguese infanta (princess) and fourth daughter of King John VI of Portugal and Carlota Joaquina of Spain. She acted as Regent of the Kingdom for her brother Pedro IV and for her niece Maria II from 1826 to 1828.
- Occupation
- politician
- Position held
- Regent of Portugal
- Citizenship
- Kingdom of Portugal
- Born
- July 4, 1801
- Died
- April 22, 1876