On 26 Jul 1723 Robert Bertie 1st Duke Ancaster and Kesteven (age 62) died. His son Peregrine Bertie 2nd Duke Ancaster and Kesteven (age 37) succeeded 2nd Duke Ancaster and Kesteven, 2nd Marquess Lindsay, 5th Earl Lindsey, 18th Baron Willoughby de Eresby. Jane Brownlow Duchess Ancaster and Kesteven by marriage Duchess Ancaster and Kesteven.

On 01 Jan 1741 Peregrine Bertie 2nd Duke Ancaster and Kesteven (age 54) died. His son Peregrine Bertie 3rd Duke Ancaster and Kesteven (age 27) succeeded 3rd Duke Ancaster and Kesteven, 3rd Marquess Lindsay, 6th Earl Lindsey, 19th Baron Willoughby de Eresby.

On 12 Aug 1778 Peregrine Bertie 3rd Duke Ancaster and Kesteven (age 64) died. His son Robert Bertie 4th Duke Ancaster and Kesteven (age 21) succeeded 4th Duke Ancaster and Kesteven, 4th Marquess Lindsay, 7th Earl Lindsey, 20th Baron Willoughby de Eresby.

On 08 Jul 1779 Robert Bertie 4th Duke Ancaster and Kesteven (age 22) died of scarlet fever unmarried at Grimsthorpe, South Kesteven. His uncle Brownlow Bertie 5th Duke Ancaster and Kesteven (age 50) succeeded 5th Duke Ancaster and Kesteven, 5th Marquess Lindsay, 8th Earl Lindsey. His sister Priscilla Barbara Elizabeth Bertie 21st Baroness Willoughby Eresby (age 18) succeeded 21st Baroness Willoughby de Eresby.

On 08 Feb 1809 Brownlow Bertie 5th Duke Ancaster and Kesteven (age 79) died without male issue at Grimsthorpe, South Kesteven. He was buried at St Mary's Church, Swinstead [Map] on 17 Feb 1809. Duke Ancaster and Kesteven, Marquess Lindsay extinct. His third cousin Albermarle Bertie 9th Earl Lindsey (age 64) succeeded 9th Earl Lindsey.

Sculpted by Richard Westmacott (age 33). A handsome white marble wall tablet in Grecian style depicting deceased and wife on a catafalque with mourning female figure, flanked by mother, children and angel. Above a scrolled cornice with Ducal coronet and palm. Beneath a rectangular inscription panel, flanked by scrolled brackets.