question: Who is Katherine Mortimer, Countess Of Warwick's mother?
context: [["Peju Ogunmola", ["Peju Ogunmola is a Yoruba film actress who stars in Nollywood movies of Yoruba genres.", "Her father was the veteran actor Kola Ogunmola.", "She is the wife of Sunday Omobolanle, a 64- year- old Nigerian comic actor, playwright, film director, and producer.", "She is the stepmother of Sunkanmi Omobolanle who is also an actor."]], ["Henriette Feuerbach", ["Henriette Feuerbach( 13 August 1812 \u2013 5 August 1892) was a German author and arts patron.", "She was the wife of Joseph Anselm Feuerbach and the stepmother of painter Anselm Feuerbach, whom she supported in his art."]], ["Roger Mortimer, 1st Earl of March", ["Roger Mortimer, 3rd Baron Mortimer, 1st Earl of March (25 April 128729 November 1330), was an English nobleman and powerful Marcher lord who gained many estates in the Welsh Marches and Ireland following his advantageous marriage to the wealthy heiress Joan de Geneville, 2nd Baroness Geneville.", "In November 1316, he was appointed Lord Lieutenant of Ireland.", "He was imprisoned in the Tower of London in 1322 for having led the Marcher lords in a revolt against King Edward II in what became known as the Despenser War.", "He later escaped to France, where he was joined by Edward's queen consort Isabella, whom he may have taken as his mistress.", "After he and Isabella led a successful invasion and rebellion, Edward was deposed; Mortimer allegedly arranged his murder at Berkeley Castle.", "For three years, Mortimer was \"de facto\" ruler of England before being himself overthrown by Edward's eldest son, Edward III.", "Accused of assuming royal power and other crimes, Mortimer was executed by hanging at Tyburn."]], ["May Green Hinckley", ["May Green Hinckley( May 1, 1881 \u2013 May 2, 1943) was the third general president of the Primary of The Church of Jesus Christ of Latter- day Saints( LDS Church) from 1940 until her death.", "She was the stepmother of Gordon B. Hinckley, fifteenth president of the LDS Church."]], ["Jane Wigham", ["Jane Wigham( n\u00e9e Smeal; 1801\u20131888) was a leading Scottish abolitionist.", "She was the stepmother of Eliza Wigham and the second wife of John Wigham."]], ["Dorothy Granger", ["Dorothy Karolyn Granger( November 21, 1911 \u2013 January 4, 1995) was an American actress best known for her roles in short subject comedies in Hollywood.", "She was also the stepmother of film maker and former record producer Anthony J. Hilder."]], ["Katherine Mortimer, Countess of Warwick", ["Katherine Mortimer, Countess of Warwick (1314 \u2013 4 August 1369) was the wife of Thomas de Beauchamp, 11th Earl of Warwick KG, an English peer, and military commander during the Hundred Years War.", "She was a daughter and co-heiress of Roger Mortimer, 1st Earl of March and Joan de Geneville, Baroness Geneville.", "Sometime before 1355, she became an important figure at the royal court of King Edward III."]], ["Irene Baker", ["Edith Irene Bailey Baker( November 17, 1901 \u2013 April 2, 1994) was an American politician and a United States Representative from Tennessee.", "She was the widow of Howard Baker Sr. and the stepmother of Howard Baker Jr."]], ["Abhinay Muthoo", ["Abhinay Muthoo is the Dean of\" Warwick in London\", a role which will enhance the University of Warwick's presence in the capital.", "He is also the Co- Director of the Warwick Policy Lab and a Professor of Economics in the Department of Economics, University of Warwick.", "He became the Dean of Warwick in London on 1 August 2016, after eight years as the Head of the Department of Economics at the University of Warwick."]], ["Margaret de Beaumont, 7th Countess of Warwick", ["Margaret de Beaumont, 7th Countess of Warwick or Margaret de Neubourg or Margery de Newburgh( died 3 June 1253) was the daughter of Henry de Beaumont, 5th Earl of Warwick and Margaret D'Oyly.", "She was the sister and heiress of Thomas de Beaumont, 6th Earl of Warwick and became the 7th Countess of Warwick in her own right.", "She married firstly John Marshal( died October 1242) and, secondly, John de Plessis.", "The latter was a great favourite of King Henry III of England who, in 1247, created him the 7th Earl of Warwick and subsequently Count of Warwick.", "He died on 20 February 1263.", "There was no issue by either of these marriages and so, at Margaret's death, the estates passed to her cousin, William Mauduit, who became the 8th Earl."]]]
supporting_facts: [["Katherine Mortimer, Countess of Warwick", 1], ["Roger Mortimer, 1st Earl of March", 0]]
evidences: [["Katherine Mortimer, Countess of Warwick", "father", "Roger Mortimer, 1st Earl of March"], ["Roger Mortimer, 1st Earl of March", "spouse", "Joan de Geneville, 2nd Baroness Geneville"]]
answer: Joan de Geneville, 2nd Baroness Geneville