Original: The Dukes of Devonshire have been closely involved with Buxton since 1780 , when the 5th Duke used the profits from his copper mines to develop the town as a spa in the style of Bath .
Simplified: The Dukes of Devonshire have been involved with Buxton since 1780 , when the 5th Duke used the profits from his copper mines to develop the town as a spa like Bath .