With Louis's death in 1227, his brother Henry Raspe assumed the regency due to the minority of four-year-old Hermann. Henry managed to officially succeed his brother after the death of Elizabeth in 1231. Hermann never reigned and died ten years later; some historians have accused Henry of poisoning the youth. He was married to Helen, daughter of Otto I, Duke of Brunswick-Lüneburg. Champlin Fighter Museum  The Champlin Fighter Museum was an aircraft museum located at Mesa, Arizona. It specialized in airworthy World War I and World War II fighters. After 22 years of operation, the Museum was closed on May 26, 2003 and its collection was moved to the Museum of Flight at Seattle's Boeing Field. It also published books related to aviation, such as Henry Sakaida's 1985 book . Santa Clara High School (Santa Clara, California)  Santa Clara High School is a comprehensive, co-educational, public high school located in Santa Clara, California, United States. It is one of four high schools in the Santa Clara Unified School District (SCUSD). The school started in 1872 in downtown Santa Clara at 270 Washington Street, what is now the campus of Buchser Middle School. In 1981, the school name moved to what was originally known as Buchser High School (1960-1981) at 3000 Benton Street. The new location picked up the Buchser mascot as the Bruins. The original school handled grades 9-12 with the middle schools of the district taking grades 7-8 Jefferson Middle School was closed with the campus eventually being sold. Cabrillo Middle School was closed for a period of time but has since reopened. San Jose State University Alumnus George Haines formed the Santa Clara Swim Club on campus in 1950. By 1960, seven swimmers from the club had qualified for the Olympics. The success of the club attracted swimmers to the high school. As a result of the club, the original Santa Clara High School was responsible for assembling the most Olympic gold medalists from a single high school. Henry Hook (crossword compiler)  Henry Hook (September 18, 1955 – October 27, 2015) was an American creator of crossword puzzles, widely credited with popularizing the cryptic crossword in North America. With Henry Rathvon and Emily Cox, he wrote the crossword for the "Boston Globe". Hook began constructing crosswords at age 14, when he sent a rebuttal crossword to Eugene T. Maleska. Maleska's crossword contained the hidden message: You Have Just Finished The World's Most Remarkable Crossword Hook's crossword contained the hidden message: What Makes You Think Your Puzzle Is More Remarkable Than Mine  Maleska subsequently became Hook's mentor.