Complex sentence: The Vauxhall site had a history of glassmaking dating back to 1612 when Sir Edward Zouche started a glass works there which was later taken over by Sir Robert Mansell, the Lord High Admiral, who in 1615 obtained a monopoly on the manufacture of glass in England.
Split into simpler sentences: The Vauxhall site had a history of glassmaking dating back to 1612 when Sir Edward Zouche started a glass works there which was later taken over by Sir Robert Mansell, the Lord High Admiral. Mansell had in 1615 obtained a monopoly on the manufacture of glass in England.