Question: Which restaurant came first Sir Pizza or Eatza Pizza?

Context articles: Rabbe Grönblom
Mr. Jim's Pizza
Pizza in China
Pizza Haven (United States)
Happy Joe's
Eatza Pizza
Peppes Pizza
Peter Jubeck
Tutta Bella Neapolitan Pizzeria
Sir Pizza

Rabbe Anders Grönblom (May 3, 1950 Helsinki, Finland – June 29, 2015) was a Finland-Swedish businessman who started a successful pizza business in Vaasa, Finland.
 His first company—a pizzeria—was called "O sole mio" and it was founded in 1976 in the center of Vaasa.
 From there he expanded to a pizza franchise chain first called "Pizzeria N:o 1".
 He was known as the "Pizza-emperor" (Pizzakeisari in Finnish), because he was the founder of a well known pizza franchise chain called Kotipizza which was the new name of "Pizzeria N:o 1" which expanded fast outside of Vaasa.
 The chain is said to be the biggest one in the Nordic countries.
 He was also the founder of a shipping company called RG Line, a hotel chain called Omenahotelli and another pizza chain called Golden Rax Pizzabuffet.
 Most of his companies are subsidiaries of Grönblom International LTD, where Rabbe Grönblom acted as director.
 Golden Rax Pizzabuffet however is nowadays a part of Finland's largest hotel & restaurant company Restel Oy Ltd, where Rabbe Grönblom sat on the board.
 He was also on the board of the Finnish tyre company Nokian Renkaat (since 2003).
MrJims.Pizza is a U.S. chain of pizza restaurants based in Farmers Branch, Texas.
 Jim Johnson opened the first restaurant in Detroit, Michigan in 1975.
 There are currently 42 locations in Louisiana, Texas, North Carolina, Nevada and Wyoming, with the majority located in northern Texas.
 MrJims.Pizza is widely known for their crust.
 Their hand stretched pizza dough is made fresh in the store daily from flour containing 100% spring wheat.
 Every single MrJims.Pizza franchise has online ordering capabilities.
 In 2006, MrJims.Pizza introduced a unique new item, Nacho Stix, to their menu.
 It quickly became one of their bestsellers, and lead to a resurgence in the popularity of MrJims.
The presence of pizza restaurant chains has contributed to a significant increase in pizza consumption in China.
 This also had an effect of introducing cheese as a culinary ingredient and everyday food in China, which was relatively uncommon in Chinese cuisine prior to the emergence of pizza chains.
 Pizza Hut opened its first store in China in 1990, and several pizza restaurant chains exist in China today.
Pizza Haven was an American Seattle-based pizzeria and pizza delivery chain, known as dial-a-pizza, founded in 1958 and opening its first location in the University District, Seattle near the University of Washington.
 Pizza Haven was one of the first pizza companies to make deliveries.
 Restaurant employees used radio phones to relay orders to roving drivers who carried stacks of pizzas in warming ovens in the back of their jeeps and pickup trucks.
Happy Joe's Pizza & Ice Cream Parlor is an American pizza parlor chain based in Bettendorf, Iowa.
 The restaurant chain was founded in 1972 by Lawrence Joseph "Happy Joe" Whitty, a former Shakey's Pizza manager.
 Its 61 restaurants are mostly located in the Midwestern United States (in Iowa, Illinois, Missouri, Minnesota, North Dakota and Wisconsin).
, although the company is also present in Arizona.
 The idea for Happy Joe's came from a combination of a pizza parlor and ice cream palace.
Eatza Pizza was a buffet-style restaurant chain founded in Arizona in 1997.
 As recently as 2007, it was one of the largest all-buffet pizza chains in the United States, with 112 locations in 14 states and Puerto Rico.
Peppes Pizza is a Norwegian pizza chain that serves American style and Italian style pizza.
 Peppes is the largest pizza chain in Scandinavia.
 The restaurant was founded by two Americans, Louis Jordan and his wife Anne from Hartford, Connecticut.
 The restaurant chain is part of Umoe Catering As which consists of restaurants such as Burger King, TGI Fridays, La Baguette and Cafe Opus.
 Peppes Pizza is one of the first restaurants that brought foreign food to Norway.
 9 million pizzas are served by Peppes each year with deliveries in 11 cities in Norway.
 Their menu was first put online in March 1995.
 The servings have been described as enough for two people and that the pizza chain is "a cut above the rest".
Peter G. "Pete" Jubeck (February 9, 1936–May 12, 2003) was a Czech American businessman who founded, with partner Robert Swartz, the restaurants; Sir Pizza of Michigan and Clara's Lansing Station, both in Lansing, Michigan, and; with partner Ross Simpson, Clara's on the River in Battle Creek, Michigan.
Tutta Bella Neapolitan Pizzeria is an Italian restaurant chain with five locations in Washington State.
 The first location was founded in 2004.
 The restaurant specializes in "authentic" Neapolitan pizza and is certified by the non-profit Associaziona Verace Pizza Napoletana ("True Neapolitan Pizza Association") which certifies pizzerias that use traditional ingredients and processes.
 Tutta Bella was the first restaurant in the Pacific Northwest to receive such certification.
Sir Pizza is an United States chain of pizza restaurants.
 Wendell Swartz opened the original restaurant in Lafayette, Indiana in 1957 under the name of Pizza King.
 Sir Pizza was incorporated in 1965.
 In 1966, Robert Swartz, Wendell's brother, expanded Pizza King outside of Indiana under the name of "Sir Pizza".
 In Indiana, they are franchised under the "Pizza King" name, one of two chains in Indiana using that name.