Complex sentence: The popular handbook had its plagiarist in Guy Miege, who brought out "The New State of England" in 1691, and although both Chamberlaynes called attention to Miege's theft, Miege continued his handbook till 1748.
Split into simpler sentences: The popular handbook was plagiarised by Guy Miege, who brought out "The New State of England" in 1691. Although both Chamberlaynes called attention to Miege's theft, Miege continued his handbook till 1748.