This is a list of Princesses Royal of Portugal (or more formally Princess Royal of the Kingdom of Portugal and the Algarves).
The title was created in 1815 when John VI (at the time Prince-Regent) elevated colonial Brazil to the status of kingdom inside the United Kingdom of Portugal, Brazil and the Algarves (thus forcing the extinction of the until then used title Prince of Brazil).
The heir became the Princess Royal of the United Kingdom of Portugal, Brazil and the Algarves.
When Brazil declared its independence, the title was changed to the current state.
This is a list of Princess Royal of Portugal who held the title by their own rights: This is a list of Princess Royal of Portugal who held the title by their marriage to the Prince Royal of Portugal: