You are talking about the eighth generation of descendants, it's kind of looking for a needle in a haystack without a name as there may be dozens or more persons in that generation.
He had Western Modernized entire Russia, increased trade, and even established a city in the middle of a swamp known as St.Petersburg. Hope this helps. P.S I didn't name EVERY THING... he did a lot...
Peter The Great (Peter I of Russia) ruled from 1672 until his death in 1725. During his reign he modernized Russia and transformed what was nothing more than a small Tsardom into a 3 billion acre...