Duke Montagu is in Dukedoms of England Alphabetically.
Summary
1705. 1st. Ralph Montagu 1st Duke Montagu [aged 66] created.
9th March 1709. 2nd. Son John Montagu 2nd Duke Montagu [aged 19] succeeded.
6th July 1749. 2nd. John Montagu 2nd Duke Montagu extinct.
In 1705 Ralph Montagu 1st Duke Montagu [aged 66] was created 1st Duke Montagu. Elizabeth "Mad Duchess" Cavendish Duchess Albermarle Duchess of Montagu [aged 50] by marriage Duchess Montagu.
On 9th March 1709 Ralph Montagu 1st Duke Montagu [aged 70] died. He was buried at Westminster Abbey [Map]. His son John [aged 19] succeeded 2nd Duke Montagu, 4th Baron Montagu of Boughton in Northamptonshire. Mary Churchill Duchess of Montagu [aged 19] by marriage Duchess Montagu.
On 6th July 1749 John Montagu 2nd Duke Montagu [aged 59] died without surviving male issue. Duke Montagu extinct. His estates were inherited by his daughter Mary [aged 38] and her husband George Brudenell aka Montagu 1st Duke Montagu [aged 36] who changed his name to Montagu from Brudenell. Monument in St Edmund's Church, Warkton [Map]. Sculpted by Louis Francois Roubiliac [aged 46]. Erected by his widow, Mary Churchill [aged 59], the daughter of the 1st Duke of Marlborough, who stands at the left hand side of the monument.








Summary
5th November 1766. 1st. George Brudenell aka Montagu 1st Duke Montagu [aged 54] created.
23rd May 1790. 1st. George Brudenell aka Montagu 1st Duke Montagu extinct.
On 5th November 1766 George Brudenell aka Montagu 1st Duke Montagu [aged 54] was created 1st Duke Montagu. Mary Montagu Duchess of Montagu [aged 55] by marriage Duchess Montagu. He was the son-in-law of the last Duke of the previous creation John Montagu 2nd Duke Montagu.
On 23rd May 1790 George Brudenell aka Montagu 1st Duke Montagu [aged 77] died. Duke Montagu extinct. His brother James [aged 65] succeeded 5th Earl Cardigan, 5th Baron Brudenell of Stonton in Leicestershire. Elizabeth Waldegrave Countess Cardigan [aged 31] by marriage Countess Cardigan. His grandson Henry [aged 13] succeeded 2nd Baron Montagu of Boughton in Northamptonshire.