Talk:Upper Oka Principalities

Definition
I must say that the term "Upper Oka Principalities" appears extremely rare in English-language literature, and I can find almost nothing indicating a definition of it. "Upper Oka (river)" can mean almost anything, from towns directly on the river to towns dozens of kilometres away. Let's try and get verifiable information here and not commit WP:OR (also note-to-self, because I see I need to be careful). NLeeuw (talk) 16:04, 20 February 2024 (UTC)