skos:altLabel | - Mazowsze
- Masovian Province
- Duchy
- Masovian
- Duke of Masovia
- Masovia
- Masovian Piasts
- Mazovia
- Duchy of Płock
- Duchy of Masovia and Rus
- Duchy of Masovia: Płock
- Duchy of Masovia: Płock and Rawa
- Duchy of Masovia: Rawa
- Duchy of Masovia: Warsaw
- Fights between Duchy of Masovia and Rus
- Masovia, Duchy of
- Mazovian dukes
- Prince of Masovia
- independent of the Polish rulers
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