Question: Who is Lord Patrick Crichton-Stuart's mother?

Knowledge 1: Lord Patrick Crichton-Stuart
Born Patrick Stuart, he was the second son of John Stuart, Lord Mount Stuart, eldest son of John Stuart, 1st Marquess of Bute, son of Prime Minister John Stuart, 3rd Earl of Bute.His mother was Lady Elizabeth Penelope, daughter and heiress of Patrick McDouall-Crichton, 6th Earl of Dumfries, while John Crichton-Stuart, 2nd Marquess of Bute, was his elder brother.His father was killed in a riding accident six months before he was born and his mother died when he was three.In 1817 he was granted the rank of a younger son of a marquess and assumed by Royal licence the surname of Crichton.The following year he was returned to Parliament for Cardiff, succeeding his uncle Lord Evelyn Stuart, a seat he held until 1820 and again from 1826 to 1832.Between 1847 and 1859 he also served as Lord-Lieutenant of Buteshire.Crichton-Stuart married Hannah, daughter of William Tighe, MP, in 1818.Their son James also represented Cardiff in the House of Commons.Crichton-Stuart died in September 1859, aged 65.His wife survived him by thirteen years and died in June 1872. [SEP] Knowledge 2: John Stuart, Lord Mount Stuart
John Stuart, Lord Mount Stuart (25 September 1767 – 22 January 1794), was an England-born Scottish Tory politician.Mount Stuart was the son of the John Stuart, 1st Marquess of Bute and the grandson of Prime Minister John Stuart, 3rd Earl of Bute.His mother was the Hon.Charlotte Jane, daughter and heiress of Herbert Windsor, 2nd Viscount Windsor.He was born at Grosvenor Square, London in 1767 and educated at Eton and St John's College, Cambridge.In 1790, he was elected Member of Parliament for Cardiff, a seat he held until his death.He was appointed Colonel of the Glamorganshire Militia in 1791 and was also Lord-Lieutenant of Glamorganshire between 1793 and his death.Lord Mount Stuart married Lady Elizabeth McDouall-Crichton, daughter of Patrick McDouall-Crichton, 6th Earl of Dumfries, and his wife Margaret (née Crauford), on 12 October 1792.They had two sons, who both added the surname "Crichton" before that of "Stuart" in 1805:Lord Mount Stuart died at Bassingbourn Hall near Stansted, Essex, in January 1794, only 26 years of age, a month after being injured in a fall from his horse.Lady Mount Stuart survived him by three years and died in July 1797, aged 24.
Knowledge 1: Lord Patrick Crichton-Stuart
Born Patrick Stuart, he was the second son of John Stuart, Lord Mount Stuart, eldest son of John Stuart, 1st Marquess of Bute, son of Prime Minister John Stuart, 3rd Earl of Bute.His mother was Lady Elizabeth Penelope, daughter and heiress of Patrick McDouall-Crichton, 6th Earl of Dumfries, while John Crichton-Stuart, 2nd Marquess of Bute, was his elder brother.His father was killed in a riding accident six months before he was born and his mother died when he was three.In 1817 he was granted the rank of a younger son of a marquess and assumed by Royal licence the surname of Crichton.The following year he was returned to Parliament for Cardiff, succeeding his uncle Lord Evelyn Stuart, a seat he held until 1820 and again from 1826 to 1832.Between 1847 and 1859 he also served as Lord-Lieutenant of Buteshire.Crichton-Stuart married Hannah, daughter of William Tighe, MP, in 1818.Their son James also represented Cardiff in the House of Commons.Crichton-Stuart died in September 1859, aged 65.His wife survived him by thirteen years and died in June 1872. [SEP] Knowledge 2: Irene Baker
Edith Irene Bailey Baker( November 17, 1901 – 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.
Knowledge 1: Lord Patrick Crichton-Stuart
Born Patrick Stuart, he was the second son of John Stuart, Lord Mount Stuart, eldest son of John Stuart, 1st Marquess of Bute, son of Prime Minister John Stuart, 3rd Earl of Bute.His mother was Lady Elizabeth Penelope, daughter and heiress of Patrick McDouall-Crichton, 6th Earl of Dumfries, while John Crichton-Stuart, 2nd Marquess of Bute, was his elder brother.His father was killed in a riding accident six months before he was born and his mother died when he was three.In 1817 he was granted the rank of a younger son of a marquess and assumed by Royal licence the surname of Crichton.The following year he was returned to Parliament for Cardiff, succeeding his uncle Lord Evelyn Stuart, a seat he held until 1820 and again from 1826 to 1832.Between 1847 and 1859 he also served as Lord-Lieutenant of Buteshire.Crichton-Stuart married Hannah, daughter of William Tighe, MP, in 1818.Their son James also represented Cardiff in the House of Commons.Crichton-Stuart died in September 1859, aged 65.His wife survived him by thirteen years and died in June 1872. [SEP] Knowledge 2: Dorothy Granger
Dorothy Karolyn Granger( November 21, 1911 – 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.

Answer: Elizabeth McDouall-Crichton