Robert Sidney, 4th Earl of Leicester
Robert Sidney, 4th Earl of Leicester( 1649 – 11 November 1702) was the son of Philip Sidney, 3rd Earl of Leicester, and the former Lady Catherine Cecil.
Joan II, Countess of Burgundy
Joan II, Countess of Burgundy( 15 January 1292 – 21 January 1330), was Queen of France by marriage to Philip V of France, and ruling Countess of Burgundy and Countess of Artois.
She was the eldest daughter and heiress of Otto IV, Count of Burgundy, and Mahaut, Countess of Artois.
Anne Yelverton
Anne Yelverton( 1628–1698) was Countess of Manchester and Countess of Halifax.
Amice (Countess)
Amice( died 1215) was a Countess of Rochefort and" suo jure" countess of Leicester.
She is associated with England but is thought to have spent most of her life in France.
She was the daughter of Robert de Beaumont, 3rd Earl of Leicester and Petronilla de Grandmesnil.
Roger Blackmore
Roger Brian Blackmore( born 1941) is a Liberal Democrat politician.
He was leader of Leicester City Council from 2003 to 2004 and 2005 to 2007 and Lord Mayor of Leicester 2009/ 10.
Dorothy Sidney, Countess of Leicester
Lady Dorothy Sidney (née Percy), Countess of Leicester ("née" Percy;
ca.
1598 – 20 August 1659), was the eldest daughter of Henry Percy, 9th Earl of Northumberland, and his wife, Lady Dorothy Devereux.
Her sister was the alleged intrigant Lucy Hay, Countess of Carlisle, and their eldest surviving brother was Algernon Percy, 10th Earl of Northumberland.
Lady Dorothy Percy married Robert Sidney, later Earl of Leicester, in 1615.
The couple had twelve children, including:
Thomas Coke, 8th Earl of Leicester
Thomas Edward Coke, 8th Earl of Leicester( born 6 July 1965), is the son of Edward Coke, 7th Earl of Leicester, and Valeria Phyllis Potter.
He is the current Earl of Leicester.
From 1994 to 2015, when he succeeded into the Earldom, he was styled Viscount Coke.
Barbara Sidney, Countess of Leicester
Barbara Sidney, Countess of Leicester( 1563 – 24 May 1621) was a Welsh heiress, and the first wife of Robert Sidney, 1st Earl of Leicester.
Anna Maria of Solms-Sonnewalde
Anna Maria, Countess of Solms- Sonnewalde( 24 January 1585 in Sonnewalde – 20 November 1634 in Ottweiler) was Countess of Soms- Sonnewalde by birth and by marriage Countess of Hohenlohe- Langenburg.
Henry Percy, 9th Earl of Northumberland
Henry Percy, 9th Earl of Northumberland, KG (27 April 1564 – 5 November 1632) was an English nobleman.
He was a grandee and one of the wealthiest peers of the court of Elizabeth I. Under James I
, Northumberland was a long-term prisoner in the Tower of London, due to the suspicion that he was complicit in the Gunpowder Plot.
He is known for the circles he moved in as well as for his own achievements.
He acquired the sobriquet
The Wizard Earl (also given to Gerald FitzGerald, 11th Earl of Kildare), from his scientific and alchemical experiments, his passion for cartography, and his large library.
His mild deafness and slight speech impediment did not prevent him from becoming an important intellectual and cultural figure of his generation.

Question: What nationality is Dorothy Sidney, Countess Of Leicester's father?
Answer: English