Original sentence: His maternal grandfather was Lord Mayor of London Ian Frank Bowater and his maternal grandmother's ancestors include Bertrand Dawson, 1st Viscount Dawson of Penn (a doctor to the British Royal Family) and philantropist Alfred Yarrow
Edited sentence: His maternal grandfather was Lord Mayor of London Ian Frank Bowater and his maternal grandmother's ancestors include Bertrand Dawson, 1st Viscount Dawson of Penn (a doctor to the British Royal Family) and philanthropist Alfred Yarrow