Complex sentence: They escort the Lady Mayoress, and particularly provide her'Travelling Escort' at the Lord Mayor's Show, both mounted and dismounted elements of the Light Cavalry also supply guards at polo matches at Smith's Lawn Windsor during the summer months.
Split into simpler sentences: They escort the Lady Mayoress, and in particular provide her'Travelling Escort' at the Lord Mayor's Show. Both mounted and dismounted elements of the Light Cavalry supply guards at polo matches at Smith's Lawn Windsor during the summer months.