Question: Which Ohio-based regional bank holding company did Jerry Grundhofer leave Bank of America for?

full_context: Document 1: Emilio Botín: Emilio Botín-Sanz de Sautuola y García de los Ríos (1 October 1934 – 10 September 2014) was a Spanish banker. He was the executive chairman of Spain's Grupo Santander. In 1993 his bank absorbed Banco Español de Crédito (Banesto), and in 1999 it merged with Banco Central Hispano creating Banco Santander Central Hispano (BSCH), which became Spain's largest bank, of which he was co-president with Central Hispano's José María Amusategui, until Amusategui retired in 2002. In 2004, BSCH acquired the British bank Abbey National, making BSCH the second largest bank in Europe by market capitalisation. He was known for his obsession with growth and performance as well as regularly visiting branches.
Document 2: Jerry Grundhofer: Jerry Grundhofer (born 1945) is the former CEO and Chairman of U.S. Bancorp. He graduated from Seattle University in 1965. In 1993, he became the president of Star Banc Corporation and held that position until 1998, when it merged with Firstar Corporation. He had been the CEO of U.S. Bancorp since February 2001, and had been Chairman of the Board since 2002. Jerry Grundhofer stepped down as CEO on December 12, 2006 and was replaced by his longtime lieutenant Richard K. Davis who assumed the position of CEO in addition to his current role as President. Jerry Grundhofer was to remain as Chairman of the Board of Directors until the end of 2007 when he was scheduled to retire. Jerry was a former Vice-President of Security Pacific Bank and Bank of America when that institution bought out Security Pacific Bank in the early 1990s. He left Bank of America to join Star Banc Corporation in 1993.
Document 3: American Fletcher National Bank: American Fletcher National Bank was an Indianapolis-based bank founded in 1839 that was eventually absorbed by Bank One and later Chase Bank. Since the merger of the Fletcher Trust Company with the American National Bank to form the American Fletcher National Bank and Trust Company at the end of 1954, it had been the largest or the second largest bank in the state of Indiana, often changing places with its Indianapolis-based rival Indiana National Bank for the top spot. From the mid-1950s through the late 1980s, American Fletcher National Bank and Trust, along with Indiana National Bank and Merchants National Bank, was one of the top three largest banks within Indianapolis and its holding company, American Fletcher Corporation, was one of the top three largest bank holding companies within the state, along with INB Financial Corporation (formerly Indiana National Corporation) and Merchants National Corporation.
Document 4: Jerry York (businessman): Jerome Bailey York (June 22, 1938 – March 18, 2010), commonly known as Jerry York, was an American businessman, and the Chairman, President and CEO of Harwinton Capital. He was the former CFO of IBM and Chrysler, and was CEO of Micro Warehouse. He was a chief aide to Kirk Kerkorian and his Tracinda investment company. In February 2006, Kerkorian helped elect York to the board of directors of General Motors, from which he had previously resigned.
Document 5: Flagstar Bank: Flagstar Bancorp, Inc. operates as the holding company for Flagstar Bank, a federally chartered stock savings bank. It is the largest publicly traded savings bank in Michigan with assets of over $16 billion in 2016. Flagstar is also a leading mortgage lender and a national leader in the wholesale mortgage business.
Document 6: Jim Rohr: James E. Rohr (born October 18, 1948) is former Chairman of PNC Financial Services Group (commonly known as PNC Bank) and former CEO. Rohr served as CEO from May 2000 to April 2013 and as Chairman from May 2001 to April 2014, both times taking over for Tom O'Brien. He is currently chairman of the Carnegie Mellon University Board of Trustees.
Document 7: Chase Bank: JPMorgan Chase Bank, N.A., doing business as Chase Bank, is a national bank that constitutes the consumer and commercial banking subsidiary of the U.S. multinational banking and financial services holding company, JPMorgan Chase. The bank was known as Chase Manhattan Bank until it merged with J.P. Morgan & Co. in 2000. Chase Manhattan Bank was formed by the merger of the Chase National Bank and The Manhattan Company in 1955. The bank has been headquartered in Columbus, Ohio since its merger with Bank One Corporation in 2004. The bank acquired the deposits and most assets of Washington Mutual.
Document 8: Ronald Logue: Ronald (Ron) E. Logue is the former Chairman of the Board of State Street Corporation (), formerly Chief Executive Officer as Jay Hooley assumed that title March 1, 2010 in addition to his role as President. Logue was appointed Chairman and Chief Executive Officer in 2004. Prior to that he held a number of leadership positions at State Street. Logue joined the company in 1990 as Senior Vice President and head of the investment servicing for US mutual funds. He was named Chief Operating Officer in 2000 and President in 2001. As President and Chief Operating Officer, Logue was responsible for overseeing State Street's investment servicing, securities and investment research and trading activities, as well as information technology. During his presidency, he led the highly successful integration of the Deutsche Bank's Global Securities Services business, acquired in January 2003.
Document 9: Bank One Corporation: Bank One Corporation was the sixth-largest bank in the United States. It traded on the New York Stock Exchange under the stock symbol ONE. The company merged with JPMorgan Chase & Co. on July 1, 2004. The company had its headquarters in the Bank One Plaza (now the Chase Tower) in the Chicago Loop in Chicago, Illinois, now the headquarters of Chase's retail banking division.
Document 10: National City Corp.: National City Corporation was a regional bank holding company based in Cleveland, Ohio, USA, founded in 1845; it was once one of the ten largest banks in America in terms of deposits, mortgages and home equity lines of credit. Subsidiary National City Mortgage is credited for doing the first mortgage in America. The company operated through an extensive banking network primarily in Ohio, Illinois, Indiana, Kentucky, Michigan, Missouri, Pennsylvania, Florida, and Wisconsin, and also served customers in selected markets nationally. Its core businesses included commercial and retail banking, mortgage financing and servicing, consumer finance, and asset management. The bank reached out to customers primarily through mass advertising and offered comprehensive banking services online. In its last years, the company was commonly known in the media by the abbreviated NatCity, with its investment banking arm even bearing the official name NatCity Investments.
Document 11: First Bank System: First Bank System was a Minneapolis, Minnesota-based regional bank holding company that later became U.S. Bancorp, a nationwide bank corporation in the United States. In 1997, First Bank System acquired U.S. Bancorp and assumed its name, while maintaining its officers and its headquarters in Minneapolis.
Document 12: Banca Commerciale Italiana: Banca Commerciale Italiana (COMIT), founded in 1894, was once one of the largest banks in Italy. In 1999 it merged with a banking group consisting of Cassa di Risparmio delle Provincie Lombarde (aka Cariplo; est. 1823) and Banco Ambroveneto, which had merged in 1998. The bank group changed the name to Intesa-BCI, which BCI temporary became a sub-holding company. On 1 January 2003, the group's name changed to Banca Intesa. In 2006 Banca Intesa merged with Sanpaolo IMI, based in Turin, Italy, to form Intesa Sanpaolo.
Document 13: Star Banc Corporation: Star Banc Corporation was a Cincinnati, Ohio-based regional bank holding company that became Firstar in 1998 and eventually became U.S. Bancorp in 2001. The company can trace it origins back to 1863 when it was first founded as the First National Bank of Cincinnati.
Document 14: William B. Harrison Jr.: William B. Harrison Jr., born August 12, 1943, in Rocky Mount, North Carolina, is the former CEO and chairman of JPMorgan Chase. He attended high school at Virginia Episcopal School, where he was a basketball star. He attended the University of North Carolina at Chapel Hill, where he was admitted to the Zeta Psi fraternity. Having risen through the ranks of Chemical Bank before succeeding Walter V. Shipley during the Chemical Bank takeover of the Chase Manhattan Corporation, he and Douglas A. Warner III, then CEO of J.P. Morgan & Co., were the principal architects of the US$30.9 billion Chase and J.P. Morgan & Co. merger of 2000. Harrison has been a director of the Firm or a predecessor institution since 1991. Harrison is also a director of Merck & Co., Inc.
Document 15: Robert Selander: Robert W. Selander was the President and Chief Executive Officer of MasterCard until 1 July 2010 when he was succeeded by Ajay Banga. He had held this position since April 1997. Before that he spent 20 years with Citibank, where he developed their global branch network and managed Citibank’s Diners Club International credit card business throughout the United States, Canada and Europe.
ground_truth: Star Banc Corporation