Complex sentence: The family are descended from Sir Humphrey Weld, Lord Mayor of London in 1601 and were notable as a recusant family prior to Catholic Emancipation in the 19th century.
Split into simpler sentences: The family are descended from Sir Humphrey Weld, Lord Mayor of London in 1601. They were notable as a recusant family prior to Catholic Emancipation in the 19th century.