Complex sentence: It fell into the hands of the Grand Duchy of Moscow in 1503 and remained of little significance until 1709, when Hetman Ivan Skoropadsky made a grant of it to Alexander Menshikov.
Split into simpler sentences: It fell into the hands of the Grand Duchy of Moscow in 1503. Pochep remained of little significance until 1709, when Hetman Ivan Skoropadsky made a grant of it to Alexander Menshikov.