question: Richard de Clair, 5th Earl of Hertford's wife's father died on what day?
answer: 22 July 1240
context: Title: Maud de Lacy, Countess of Hertford and Gloucester
  Passage: Maud de Lacy, (25 January 1223 – 10 March 1289), was an English noblewoman, being the eldest child of John de Lacy, 2nd Earl of Lincoln, and the wife of Richard de Clare, 5th Earl of Hertford, 6th Earl of Gloucester.
  Title: Bogo de Clare
  Passage: Bogo de Clare (21 July 1248 - October 1294) was the third son of Richard de Clare (1222–1262), 5th Earl of Hertford, 6th Earl of Gloucester.  He held multiple clerical livings, without apparently, having been ordained priest.
  Title: Richard de Clare, 6th Earl of Gloucester
  Passage: Richard de Clare, 5th Earl of Hertford, 6th Earl of Gloucester, 2nd Lord of Glamorgan, 8th Lord of Clare (4 August 1222 – 14 July 1262) was son of Gilbert de Clare, 4th Earl of Hertford and Isabel Marshal.  On his father's death, when he became Earl of Gloucester (October 1230), he was entrusted first to the guardianship of Hubert de Burgh.  On Hubert's fall, his guardianship was given to Peter des Roches (c. October 1232); and in 1235 to Gilbert, Earl Marshall.  He was also a powerful Marcher Lord in Wales and inherited the Lordship of Glamorgan upon the death of his father.
  Title: Eleanor de Clare
  Passage: Eleanor de Clare, suo jure 6th Lady of Glamorgan (3 October 1292-30 June 1337) was a powerful English noblewoman who married Hugh Despenser the Younger and was a granddaughter of Edward I of England.  With her sisters, Elizabeth de Clare and Margaret de Clare, she inherited her father's estates after the death of her brother, Gilbert de Clare, 8th Earl of Gloucester, 7th Earl of Hereford at the Battle of Bannockburn in 1314.  She was born in 1292 at Caerphilly Castle in Glamorgan, Wales and was the eldest daughter of Gilbert de Clare, 6th Earl of Hertford, 7th Earl of Gloucester, 5th Lord of Glamorgan and Princess Joan of Acre.
  Title: John de Lacy, 2nd Earl of Lincoln
  Passage: John de Lacy (  1192 – 22 July 1240) was the 2nd Earl of Lincoln, of the fourth creation.
citations: John de Lacy, 2nd Earl of Lincoln Maud de Lacy, Countess of Hertford and Gloucester