Complex sentence: In 1716 Gibson was presented to the see of Lincoln, whence he was in 1720 translated to that of London, where for twenty-five years he exercised influence, being regularly consulted by Sir Robert Walpole on all ecclesiastical affairs.
Split into simpler sentences: In 1716 Gibson was presented to the see of Lincoln, whence he was in 1720 translated to that of London. For twenty-five years he exercised influence, being consulted by Sir Robert Walpole on ecclesiastical affairs.