Question: When was the owner of Princess Louise, Holborn founded? 

Context articles: Princess Louise, Holborn
Princess Alice of Parma (1849–1935)
SS Princess Louise (1921)
Louise d'Orléans, Princess of Bavaria (1869–1952)
Princess Louise (sidewheeler)
Princess Dorothea of Saxe-Coburg and Gotha
Arthur Collins (courtier)
Samuel Smith Brewery
Princess Louise of Denmark (1875–1906)
Princess Louise Charlotte of Saxe-Altenburg

The Princess Louise is a public house situated on High Holborn, a street in central London.
 Built in 1872, it is best known for its well-preserved 1891 Victorian interior, with wood panelling and a series of booths around an island bar.
 It is a tied house owned by the Samuel Smith Brewery of Tadcaster, Yorkshire.
Princess Alice of Bourbon-Parma (Italian: "Alicia Maria Carolina Ferdinanda Rachael Giovanna Filomena" ; 27 December 1849, Parma, Duchy of Parma – 16 November 1935, Schwertberg, Austria) was the youngest daughter of Charles III, Duke of Parma and Princess Louise Marie Thérèse of France, the eldest daughter of Charles Ferdinand, Duke of Berry and Princess Caroline Ferdinande Louise of the Two Sicilies.
The SS "Princess Louise" was a 331-foot steamship, named in honor of Louise, Princess Royal and Duchess of Fife, Queen Victoria's sister.
 The ship was part of the Canadian Pacific Railway's "Princess" fleet, the coastal counterparts to CPR's "Empress" fleet of passenger liners which sailed on trans-Pacific and trans-Atlantic routes.
 The ships of the British Columbia Coast Steamships came to be called "pocket liners" because they offered on smaller vessels the superior class of service, splendid amenities and luxurious decor equal to great ocean liners.
Princess Louise d'Orléans (Louise Victoire Marie Amélie Sophie; 19 July 1869 – 4 February 1952) was a French princess of the House of Orléans and a member of the Royal Family of Bavaria.
 Throughout her life Louise remained very close to her first cousin, the Austrian archduchess Marie Valerie of Habsburg-Lorraine.
Princess Louise was a sidewheel steamboat built in 1869.
 From 1869 to 1879 this ship was named "Olympia".
 In 1879 the name was changed to "Princess Louise", after Princess Louise, Duchess of Argyll, a daughter of Queen Victoria who was married to Marquess of Lorne (1845-1914), Governor General of Canada from 1878 to 1883.
 "Princess Louise" was the last sidewheeler to be operated commercially on the coast of British Columbia.
Princess Dorothea Maria Henriette Auguste Louise of Saxe-Coburg and Gotha (30 April 1881 – 21 January 1967) was a princess of Saxe-Coburg and Gotha (German: "Prinzessin von Sachsen-Coburg und Gotha" ) by birth and the duchess of Schleswig-Holstein (German: "Herzogin zu Sachsen" ) through her marriage to Ernst Gunther, duke of Schleswig-Holstein.
 Dorothea was born in Vienna, Austria, the second child and only daughter of Prince Philipp of Saxe-Coburg and Gotha and Princess Louise of Belgium.
Arthur Collins CB, MVO, Commander, Hohenzollern Order (26 June 1845 – 21 November 1911), was Equerry and Comptroller for Princess Louise, Queen Victoria's 4th daughter and Gentleman Usher in the households of Queen Victoria and King Edward VII.
 He attended Princess Louise in her role as the wife of John Campbell, 9th Duke of Argyll (at that time Marquis of Lorne), who was Governor General and Vice Regent of Canada between 1878 and 1883.
 Collins represented Princess Louise at the funerals of Lord Beaconsfield, Benjamin Disraeli, and William Ewart Gladstone, the two competing Prime Ministers during Queen Victoria's reign.
 Collins attended as a Gentleman Usher the coronation of King Edward VII and probably Victoria's funeral.
Samuel Smith's Old Brewery, popularly known as Samuel Smith's or Sam Smith's, is an independent British brewery in Tadcaster, North Yorkshire, England.
 It is Yorkshire's oldest brewery, founded in 1758.
Princess Louise of Denmark ("Louise Caroline Josephine Sophie Thyra Olga") (17 February 1875 – 4 April 1906) was a Danish princess, the third child and oldest daughter of Frederick VIII of Denmark and his wife, Princess Louise of Sweden and Norway.
Princess Louise Charlotte of Saxe-Altenburg (Marie Agnes Louise Charlotte; 11 August 1873 in Altenburg – 14 April 1953 in Altenburg) was a German noblewoman.
 She was a princess of Saxe-Altenburg by birth and a princess of Anhalt by marriage.