Question: Henrietta d'Oultremont was the second wife of a king born in what year?

Context articles: Maria Christina of Austria
Lord Dingwall
Mary Rich, Countess of Warwick
Henrietta d'Oultremont
William I of the Netherlands
Dipangkorn Rasmijoti
Benedicta Henrietta of the Palatinate
Henrietta of England
Maria Theresa of Austria (1816–1867)
Leg of mutton nude

Maria Christina Henriette Desideria Felicitas Raineria of Austria, also known as Maria Christina Henrietta Désirée Félicité Rénière (21 July 1858 – 6 February 1929) was Queen of Spain as the second wife of King Alfonso XII.
 She was regent during the vacancy of the throne between her husband's death and her son's birth, and during the minority of their son, Alfonso XIII, between 1885 and 1902.
Lord Dingwall is a title in the Peerage of Scotland.
 It was created in 1609 for Sir Richard Preston, with remainder to his heirs whatsoever.
 In 1619 he was further honoured when he was made Baron Dunmore and Earl of Desmond in the Peerage of Ireland, with remainder to heirs male.
 On his death in 1628 the Irish titles became extinct while he was succeeded in the Scottish lordship by his daughter Elizabeth, the second Lady Dingwall.
 She was the wife of James Butler, 1st Duke of Ormonde.
 Their eldest son Thomas Butler, Earl of Ossory, was summoned by writ to the English Parliament as Baron Butler, of Moore Park, in 1666.
 However, he predeceased his parents who were both succeeded by their grandson, the second Duke and third Lord Dingwall.
 He had already succeeded his father as second Baron Butler.
 However, the Duke was attainted in 1715 and his titles forfeited.
 In 1871, Francis Cowper, 7th Earl Cowper, managed to obtain a reversal of the attainder of the lordship of Dingwall and barony of Butler and became the fourth Lord Dingwall and third Baron Butler.
 He was the great-great-great-grandson of Henrietta Butler, Countess of Grantham (wife of Henry de Nassau d'Auverquerque, 1st Earl of Grantham), second daughter of Thomas Butler, Earl of Ossory and 1st Baron Butler, whose second daughter Lady Henrietta de Nassau d'Auverquerque married William Clavering-Cowper, 2nd Earl Cowper.
 In 1880 he also succeeded his mother as eighth Baron Lucas of Crudwell.
 For later history of the lordship of Dingwall and barony of Butler, see the Baron Lucas of Crudwell.
Mary Rich, Countess of Warwick (8 November 1625 – 12 April 1678) was the seventh daughter of Richard Boyle, 1st Earl of Cork, and his second wife, Catherine Fenton (only daughter of Sir Geoffrey Fenton and Alice Weston).
 She was born in 1625 in Youghal, County Cork, and after her mother's death (1628) raised by relatives in Mallow before becoming a maid of honour to Queen Henrietta Maria.
 In 1641 she married Charles Rich, 4th Earl of Warwick , and they had two children who died young.
Countess Henriëtte Adriana Maria Ludovica Flora d'Oultremont de Wégimont (28 February 1792 in Maastricht–26 October 1864 at Rahe Castle in Aachen) was the second, morganatic, wife of the first Dutch king, William I.
William I (Willem Frederik, Prince of Orange-Nassau; 24 August 1772 – 12 December 1843) was a Prince of Orange and the first King of the Netherlands and Grand Duke of Luxembourg.
Prince Dipangkorn Rasmijoti (born 29 April 2005; Thai: ทีปังกรรัศมีโชติ ; rtgs: "Thipangkon Ratsamichot" ;  ] ) is a member of the country's Chakri dynasty and heir presumptive to the throne of Thailand.
 He is the fifth son of King Vajiralongkorn.
 His mother is Srirasmi Suwadee, the king's third legal wife.
 His father also has a daughter by his first wife and five children (four sons and a daughter) by his second wife; all the children of the second wife were born before the then-crown prince married their mother but after the Crown Prince married her the 5 children were legitimised by marriage.
 After the Crown Prince divorced his second wife in 1996, he disowned her sons.
 Thus, Dipangkorn is the only recognised son of the king.
Princess Palatine Benedicta Henrietta (Benedicta Henrietta Philippina; 14 March 1652 – 12 August 1730) was a German princess, the third and youngest daughter of Prince Palatine Edward and his French wife, the political hostess Anna Gonzaga.
 Benedicta became the Duchess of Brunswick-Lüneburg, or of Hanover, by her marriage to Duke John Frederick.
 She was a descendant of the Paleologos and Angelos Byzantine emperors and an ancestor of Louis XVI of France and Louis Philippe I, King of the French, as well as the Habsburg-Lorraine dinasty from Francis I of Austria and of most Roman Catholic dynasties of Europe of the XIX, XX and XXI centuries.
Henrietta of England (16 June 1644 O.S. (26 June 1644 N.S.) – 30 June 1670) was the youngest daughter of King Charles I of England, Scotland and Ireland and his wife, Henrietta Maria of France.
 Fleeing England with her governess at the age of three, she moved to the court of her first cousin Louis XIV of France, where she was known as "Minette".
 After she married Philippe of France, brother of King Louis XIV, known as "Monsieur" at court, she became known as "Madame".
 Her marriage was marked by frequent tensions.
 Henrietta was instrumental in negotiating the Secret Treaty of Dover, in June 1670 – early in the same month as her unexpected death.
 Jacobite claims to the throne of Great Britain following the death of Henry Benedict Stuart descend from her through her daughter Anne Marie, Queen of Sardinia.
Maria Theresa of Austria (Maria Theresia Isabella; 31 July 1816 – 8 August 1867) was the second wife of Ferdinand II of the Two Sicilies.
 She was the eldest daughter of Archduke Charles, Duke of Teschen and Princess Henrietta of Nassau-Weilburg.
Double Nude Portrait: The Artist and his Second Wife 1937 (also known as the Leg of mutton nude portrait) is an oil on canvas painting by British artist Stanley Spencer.
 It depicts Spencer and his soon-to-be second wife, Patricia Preece, beside a raw leg of lamb.
 The painting is sexually charged: Spencer's second wife was a lesbian in a long-term relationship when they married, and their marriage was never consummated.
 The painting is held by the Tate Gallery, which describes it as "probably now Spencer's most famous picture".