The chief operating officer of Zions Bancorp’s wealth management subsidiary will assume leadership of the business on June 3,the Salt Lake City-based bank announced today.

Julie Castle will succeed George Feiger as chief executive officer of the subsidiary, Contango Capital Advisors. Feiger is retiring to lead the business school of a British university, Zions said.

Castle has served as Contango’s chief operating officer for the past two years. Prior to that, she served as executive vice president with responsibility for the Wealth Management Division of First Interstate BancSystem in Billings, Mont. Other positions included serving as senior vice president and region executive in several different areas for the Premier Banking & Investments unit of Bank of America’s Global Wealth and Investment Management Division.

“We look forward to the contributions Julie Castle will make to our business in this new role,” Harris Simmons, chairman and CEO of Zions, said in a statement. “Over the past two years, she has demonstrated outstanding leadership in tailoring our product offering to our customers’ needs, in rationalizing our wealth management organizational structure and in more closely integrating our wealth management business with our subsidiary banks,” he said.

Feiger will serve as Contango’s chief executive officer until June 3 when he will take a new job as dean of Aston Business School at Aston University in Birmingham, England.

“We are very appreciative of George’s service to the company for nearly a decade,” Simmons said. “He has assembled a strong team of wealth advisors and has made great progress in building a first-class organization serving the needs of our clients throughout the western United States.”

Zions operates eight bank subsidiaries with some 485 branches in 10 western and southwestern states.