Walter Rice, 7th Baron Dynevor
Walter FitzUryan Rice, 7th Baron Dynevor( 17 August 1873 – 8 June 1956) was a British military officer, civil servant and Conservative politician.
He was the only son and heir of the 6th Baron Dynevor.
Arthur Rice, 6th Baron Dynevor
Arthur de Cardonnel FitzUryan Rice, 6th Baron Dynevor( 24 January 1836 – 8 June 1911) was a British peer.
He was the son of Francis William Rice, 5th Baron Dynevor and Harriett Ives Barker.
On 17 October 1855 Rice matriculated at Christ Church, Oxford.
He gained a B.A. degree in 1855 and was awarded an M.A. degree in 1865.
Rice married Selina Lascelles, the daughter of Hon. Arthur Lascelles, the fifth son of Henry Lascelles, 2nd Earl of Harewood.
The child of the couple was Walter FitzUryan Rice, born 17 August 1873.
Walter later reverted to the Welsh form of his name “ Rhys ”.
He became a member of Carmarthenshire County Council at the inaugural elections in 1889, representing Llandybie.
The 6th Baron Dynevor died on 8 June 1911 aged 75 at Dynevor Castle.
George Rice (died 1779)
George Rice( 1724 – 3 August 1779) was a Welsh politician and courtier.
George Rice-Trevor, 4th Baron Dynevor
George Rice-Trevor, 4th Baron Dynevor (5 August 1795 – 7 October 1869) was a British politician and peer.
Thomas Spring Rice, 3rd Baron Monteagle of Brandon
Thomas Aubrey Spring Rice, 3rd Baron Monteagle of Brandon (3 November 1883 – 11 October 1934) was an Anglo-Irish peer and British diplomat.
Hugo Rhys, 10th Baron Dynevor
Hugo Griffith Uryan Rhys, 10th Baron Dynevor( born 19 November 1966) is a British hereditary peer.
He was educated at Bryanston School and at the University of East Anglia where he graduated with a degree in drama in 1988.
The son of Richard Rhys, 9th Baron Dynevor and Lucy Catherine King, he succeeded to the barony in 2008.
He is the maternal grandson of Sir John Rothenstein.
The heir presumptive to the Barony is Robert David Arthur Rhys, a great- grandson of Walter Rice, 7th Baron Dynevor and second cousin to the present Baron.
Gilbert Talbot, 3rd Baron Talbot
Gilbert Talbot, 3rd Baron Talbot( c. 1332–1387) was an English nobleman and soldier.
He was the grandfather of John Talbot, 1st Earl of Shrewsbury.
George Rice, 3rd Baron Dynevor
George Talbot Rice, 3rd Baron Dynevor (Dinefwr) (8 October 1765 – 9 April 1852) was a British peer and politician.
He was the son of Cecil de Cardonnel, 2nd Baroness Dynevor and George Rice (or Rhys).
He was educated at Westminster School and matriculated at Christ Church, Oxford on 1 February 1783, where he was awarded a Master of Arts degree on 30 May 1786.
Talbot Rice was the Tory Member of Parliament for Carmarthenshire from 1790 to 1793.
His father had previously been the Tory MP for Carmarthenshire between 1754-1779.
He inherited his title in 1793 on the death of his mother.
The 3rd Baron's mother had adopted, by royal licence
the name of de Cardonnel.
In 1817 (again by royal licence) he resumed his paternal surname of Rice.
His name is now often hyphenated as Talbot-Rice.
He died on 9 April 1852.
On 20 October 1794 he had married Frances Townshend, third daughter of Thomas Townshend, 1st Viscount Sydney of St Leonards.
They had 2 sons and 5 daughters and lived at Newton House in his Dynefwr estate near Llandeilo, Carmarthenshire.
He was succeeded by his eldest son George, who later adopted the surname of Rice-Trevor.
Cecil de Cardonnel, 2nd Baroness Dynevor
Cecil de Cardonnel, 2nd Baroness Dynevor (
July 1735 – 14 March 1793) was a Welsh peeress.
She was the daughter of William Talbot, 1st Earl Talbot.
Her mother was the daughter and heir of Adam de Cardonnel, British Secretary of War.
Under the special remainder in the creation of the barony for her father, she and her heirs male were entitled to inherit the Barony of Dynevor.
He father was also the 1st Earl Talbot (a title that became extinct on his death) and 2nd Baron Talbot of Hensol.
That title was inherited by Lady Dynevor’s cousin, John Chetwynd-Talbot.
On 16 August 1756 she married George Rice.
Rice was a Member of Parliament for county Carmarthenshire between 1754 and 1779 and Lord Lieutenant of Carmarthen from 1755 to 1779.
Rice died on 3 August 1779.
The widowed Lady Dinevor, took, by royal licence, the surname of de Cardonnel from 21 May 1787.
She succeeded to the title in 1782, upon the death of her father.
She died on 14 March 1793, at Dynevor Castle, aged 57.
The title passed to her elder son, George Talbot-Rice who become the 3rd Baron Dynevor, resuming his paternal surname of Rice in 1827.
George Mason II
George Mason II( 1660 – 1716) was an early American planter and statesman.
Mason was the grandfather of George Mason IV, a Founding Father of the United States.

Question: Who is George Rice, 3Rd Baron Dynevor's maternal grandfather?
Answer: William Talbot, 1st Earl Talbot