What did the Riga Latvians signed for in the 18th century and the first half of the 19th century
| Melita Svarāne | |
| History, , | |
| Issue | "Latvijas Arhīvi" 2001.3 |
| page 36 | |
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What did the Riga Latvians signed for in the 18th century and the first half of the 19th century
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