Question: Who founded the chain of music-themed restaurants whose first establishment opened in the birthplace of the queen who agreed to turn the United Provinces into a protectorate of England?

happy eater was a chain of family-oriented roadside restaurants that operated throughout england and wales until 1997. the company was established in 1973 by michael pickard as a rival to little chef, which was the only national chain of roadside restaurants at the time. the restaurants offered similar fare to little chef, such as english breakfasts and fish and chips. the major difference between happy eater and little chef was that it provided outdoor playground equipment. outlets were mostly located in south east england, the midlands and along the a1 corridor. <SEP> After the assassination of William of Orange (10 July 1584), both Henry III of France and Elizabeth I of England declined the offer of sovereignty. In 1582 the United Provinces invited Francis, Duke of Anjou to lead them; but after a failed attempt to take Antwerp in 1583, the duke left the Netherlands again. However, the latter agreed to turn the United Provinces into a protectorate of England (Treaty of Nonsuch, 1585), and sent the Earl of Leicester as governor-general. This was unsuccessful and in 1588 the provinces became a confederacy. The Union of Utrecht is regarded as the foundation of the Republic of the Seven United Provinces, which was not recognized by the Spanish Empire until the Peace of Westphalia in 1648. <SEP> She was educated privately at home. Elizabeth was born in London to the Duke and Duchess of York, later King George VI and Queen Elizabeth, and was the elder of their two daughters. Her father acceded to the throne on the abdication of his brother Edward VIII in 1936, from which time she was the heir presumptive. She began to undertake public duties during World War II, serving in the Auxiliary Territorial Service. In 1947, she married Philip, Duke of Edinburgh, with whom she has four children: Charles, Anne, Andrew, and Edward. <SEP> The restaurant combined rock music, memorabilia related to rock 'n' roll and American cuisine. On June 14, 1971 he and Peter Morton started the first Hard Rock Café (HRC) restaurant in London's fashionable Mayfair district. <SEP> London has numerous venues for rock and pop concerts, including the world's busiest arena the o2 arena and other large arenas such as Earls Court, Wembley Arena, as well as many mid-sized venues, such as Brixton Academy, the Hammersmith Apollo and the Shepherd's Bush Empire. Several music festivals, including the Wireless Festival, South West Four, Lovebox, and Hyde Park's British Summer Time are all held in London. The city is home to the first and original Hard Rock Cafe and the Abbey Road Studios where The Beatles recorded many of their hits. In the 1960s, 1970s and 1980s, musicians and groups like Elton John, Pink Floyd, David Bowie, Queen, The Kinks, The Rolling Stones, The Who, Eric Clapton, Led Zeppelin, The Small Faces, Iron Maiden, Fleetwood Mac, Elvis Costello, Cat Stevens, The Police, The Cure, Madness, The Jam, Dusty Springfield, Phil Collins, Rod Stewart and Sade, derived their sound from the streets and rhythms vibrating through London. <SEP> initially, the us stores were the result of natural expansion in canada -- u.s. border areas (e.g., stores in maine and the buffalo, new york area where horton played from 1972 to 1974 as a member of the buffalo sabres). the first united states locations were opened in deerfield beach, florida and pompano beach, florida in 1981, but they proved unsuccessful and were closed. in 1985, the chain returned to the us with a location on niagara falls boulevard in the buffalo suburb of amherst, new york. starting in the mid-1990s, however, the chain began expanding in the us by acquiring former locations from fast food chains. in 1996 and 1997, thirty - seven former rax restaurants locations in ohio, kentucky, and west virginia were bought by wendy's international inc.; 30 of these were converted to tim hortons, while the others became wendy's franchise locations. thirty - five closed hardee's stores in the detroit area were also purchased with the intention of being converted. by 2004, the chain had also acquired 42 bess eaton coffee and doughnut restaurants situated in southern new england. several combination wendy's / tim hortons units were opened in the us; both in the ``traditional ''markets of maine and buffalo, where there were well over 180 locations as of 2011, and in the markets entered through acquisition.