skos:altLabel | - 1st Duke of Palmela
- Pedro de Sousa Holstein (later 1st Duke of Palmela)
- Duke of Palmela
- Duque de Palmela
- Marquis of Palmela
- Palmela
- Pedro de Holstein
- Pedro de Sousa Holstein
- Pedro de Sousa Holstein, 1.º Duque de Palmela
- Pedro de Sousa Holstein, 1st Count of Palmela
- The Duke of Palmela
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