Infanta Isabel Luísa Josefa of Portugal was the only child of Peter II of Portugal and his first wife and former sister-in-law, Maria Francisca of Savoy. She was the heiress presumptive to the throne of Portugal between 1674 and 1689, when her half-brother John was born. As such, she was styled Princess of Beira.
- Occupation
- aristocrat
- Citizenship
- Kingdom of Portugal
- Born
- January 6, 1669
- Died
- October 2, 1690
