Benedict's reign ends with a promise to obey next pope

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Pope Benedict XVI speaks to the faithful for the last time from the balcony of his summer residence in Castel Gandolfo February 28, 2013. Pope Benedict left the Vatican on Thursday after pledging unconditional obedience to whoever succeeds him to guide the Roman Catholic Church at one of the most crisis-ridden periods in its 2,000-year history. REUTERS/ Tony Gentile ( ITALY - Tags: RELIGION)