Complex sentence: John Boswell, 3rd Laird of Auchinleck (1532?--1609), was a Scottish gentleman, considered by some scholars to be the first recorded non-operative Freemason.
Split into simpler sentences: John Boswell, 3rd Laird of Auchinleck (1532?--1609), was a Scottish gentleman. He is considered by some scholars to be the first recorded non-operative Freemason.