The Treaty of Montgomery was an Anglo-Cambrian treaty signed on 29 September 1267 in Montgomeryshire by which Llywelyn ap Gruffudd was acknowledged as Prince of Wales by King Henry III of England (r. 1216–1272).
 It was the only time an English ruler recognised the right of a ruler of Gwynedd over Wales.
 Llywelyn's grandfather Llywelyn the Great had previously laid claim to be the effective prince of Wales by using the title "Prince of Aberffraw, Lord of Snowdon" in the 1230s, after subduing all the other Welsh dynasties.
 Likewise Llywelyn's uncle, Dafydd ap Llywelyn, claimed the title of Prince of Wales during his reign from 1240 to 1246.
 However, Llywelyn's supremacy in the late 1260s forced recognition of his authority in Wales by an English Crown weakened by internal division.
Prince of Wales is a cocktail composed by Albert Edward, Prince of Wales, later to be King Edward VII.
 There are several variations of the cocktail, but what they usually have in common is champagne, angostura bitters on sugar, either rye whiskey or cognac, and a liqueur.
Margaret Hanmer (c. 1370 – c. 1420), sometimes known by her Welsh name of Marred ferch Dafydd, was the wife of Owain Glyndŵr.
 Although some modern histories have accorded Margaret the title "Princess of Wales", there is no contemporary record that Margaret used either that title, or her husband's earlier title of Prince of Powys; it is likely Margaret would have used neither. "
Princess of Wales", an English honorific given to the wife of the English prince of Wales, was first used by Joan of Kent.
 Only one wife of a Welsh prince is known to have used the title: Eleanor de Montfort, wife of Llywelyn ap Gruffudd, the last Prince of Wales.
Joe Gilmore (19 May 1922 – 18 December 2015) was one of the longest running Head Barmen at The Savoy Hotel's American Bar.
 He was born in Belfast and moved to London in 1938.
 Gilmore started as a trainee barman at The American Bar in 1940 and was appointed Head Barman in 1955, a position he held until he retired in 1976.
 Over his years as Head Barman, Gilmore invented numerous cocktails to mark special events and important guests, a longstanding tradition at the American Bar.
 Gilmore has invented cocktails in honor of a number of royalty, politicians and celebrities including The Prince of Wales, Prince William, The Princess Anne, Queen Elizabeth The Queen Mother, The Prince Andrew, Sir Winston Churchill, and American Presidents Harry S. Truman and Richard Nixon.
 He also invented cocktails to commemorate the first walk on the moon in 1969 by Neil Armstrong, and the American and Russian link-up in space in 1975.
Rhys ap Gruffydd or ap Gruffudd (often anglicised to "Griffith") (1132 – 28 April 1197) was the ruler of the kingdom of Deheubarth in south Wales from 1155 to 1197.
 Today, he is commonly known as The Lord Rhys, in Welsh "Yr Arglwydd Rhys", although this title may have not been used in his lifetime.
 He usually used the title "Proprietary Prince of Deheubarth" or "Prince of South Wales", but two documents have been discovered in which he uses the title "Prince of Wales" or "Prince of the Welsh".
 Rhys was one of the most successful and powerful Welsh princes, and, after the death of Owain Gwynedd of Gwynedd in 1170, the dominant power in Wales.
L(2, 1)-coloring is a particular case of L(h, k)-coloring which is in fact a proper coloring.
 In L(2, 1)-coloring of a graph, G, the vertices of the graph G is colored or labelled in such a way that the adjacent vertices get labels that differ by at least two.
 Also the vertices that are at a distance of two from each other get labels that differ by at least one.
The Prince's Charities, The Prince's Charities Canada (French: "Les Œuvres de bienfaisance du prince au Canada" ), and The Prince's Trust Australia (formerly The Prince's Charities Australia) are three groups of non-profit organisations that each have associations with Prince Charles, Prince of Wales.
 The Prince's Charities, supported by The Prince's Charities Foundation, is based in the United Kingdom and comprises 19 organisations of which the Prince of Wales is patron or president; 18 were founded personally by Charles.
 The Prince's Charities Canada is a Canadian entity formed by a collection of nine preexisting charitable organisations with prior connections to the Prince of Wales.
 All the charities focus on Charles' core interests, including aiding disadvantaged youth, education, responsible business, improvement of the built environment, regeneration of heritage, and environmental sustainability.
The Hanky-Panky cocktail was the brainchild of Ada Coleman (known as "Coley") who began as a bartender at the Savoy Hotel in 1903.
 Her benefactor was Rupert D'Oyly Carte, a member of the family that first produced Gilbert and Sullivan operas in London and that built the Savoy Hotel.
 When Rupert became chairman of the Savoy, Ada was given a position at the hotel's American Bar, where she eventually became the head bartender and made cocktails for the likes of Mark Twain, the Prince of Wales, Prince Wilhelm of Sweden, and Sir Charles Hawtrey.
The Prince of Wales Trophy, also known as the Wales Trophy, is an award presented by the National Hockey League (NHL) to the Eastern Conference (formerly the Wales Conference) playoff champions, prior to the final series of games for the Stanley Cup.
 Named for Prince Edward, Prince of Wales (later King Edward VIII and then Duke of Windsor), the trophy was first presented in the 1925–26 NHL season to the champion of the first game in Madison Square Garden and then subsequently presented to the champion of the NHL playoffs (including the previous two seasons).
 However, the trophy has been awarded for eight different accomplishments throughout its history, including for the American Division regular season champions, the NHL regular season champions, the East Division season champions, the Wales Conference regular season champions, the Wales Conference playoff champions, and the Eastern Conference playoff champions.
 The current holder of the Prince of Wales Trophy are the Pittsburgh Penguins, after winning the 2017 Eastern Conference Final.
The Goldeneye is a smooth cocktail made from rum and pineapple juice served in an margarita glass with a wedge of pineapple.
 A lime wheel can be substituted for the pineapple wedge.

Question: The Goldeneye and Prince of Wales are both cocktails, but differ in what way?
Answer: The Goldeneye is a smooth cocktail made from rum and pineapple juice