Complex sentence: John Crozier came to Ireland as a Cavalry officer in 1630 with Lord Strafford, prior to that he came from Redworth Hall (Which still stands in the village of Heighington), County Durham and his family had been there since 1407.
Split into simpler sentences: John Crozier came to Ireland as a cavalry officer in 1630 with Lord Strafford. Prior to that he came from Redworth Hall (which still stands in the village of Heighington), County Durham; his family had been there since 1407.