Photos: Pope Benedict XVI holds Ash Wednesday mass at the Vatican

Pope Benedict XVI sprinkles ashes on Cardinal Tarcisio Bertone (C) during the Ash Wednesday mass at the Vatican February 13, 2013. Thousands of people are expected to gather in the Vatican for Pope Benedict's Ash Wednesday mass, which is expected to be his last before leaving office at the end of February. REUTERS/Alessandro Bianchi

Pope Benedict XVI arrives for the mass for Ash Wednesday, opening Lent, the forty-day period of abstinence and deprivation for the Christians, before the Holy Week and Easter, on February 13, 2013 at St Peter's basilica at the Vatican. Pope Benedict XVI made his first public appearance on Wednesday since his shock resignation announcement, asking thousands of cheering pilgrims at the Vatican to "keep praying for me". VINCENZO PINTO/AFP/Getty Images

Pope Benedict XVI arrives in St. Peter's Basilica on the occasion of the celebration of Ash Wednesday mass at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI celebrates the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Bishop Guido Marini holds Pope Benedict XVI's skull cap during the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. (AP Photo/Gregorio Borgia)

Pope Benedict XVI holds up the host as he celebrates the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Bishop Guido Marini takes Pope Benedict XVI's skull cap during the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI puts the ashes on Cardinal Angelo Comastri's head during the celebration of Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI blesses the ashes as he celebrates the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI gives the communion to a nun as he celebrates the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI attends the Ash Wednesday mass at the Vatican February 13, 2013. Thousands of people are expected to gather in the Vatican for Pope Benedict's Ash Wednesday mass, which is expected to be his last before leaving office at the end of February. REUTERS/ Alessandro Bianchi

Pope Benedict XVI is sprinkled with ashes during the Ash Wednesday mass at the Vatican February 13, 2013. Thousands of people are expected to gather in the Vatican for Pope Benedict's Ash Wednesday mass, which is expected to be his last before leaving office at the end of February. REUTERS/Alessandro Bianchi

Pope Benedict XVI holds the pastoral staff during the celebration of Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI arrives in St. Peter's Basilica on the occasion of the celebration of Ash Wednesday mass at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Alessandro Bianchi, Pool)

Pope Benedict XVI celebrates the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI arrives in St. Peter's Basilica on the occasion of the celebration of Ash Wednesday mass at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI celebrates the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Bishop Guido Marini, right, and an unidentified master of ceremonies adjust Pope Benedict XVI's robe during the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI celebrates the Ash Wednesday mass in St. Peter's Basilica at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Gregorio Borgia)

Pope Benedict XVI arrives in St. Peter's Basilica on the occasion of the celebration of Ash Wednesday mass at the Vatican, Wednesday, Feb. 13, 2013. Ash Wednesday marks the beginning of Lent, a solemn period of 40 days of prayer and self-denial leading up to Easter. Pope Benedict XVI told thousands of faithful Wednesday that he was resigning for "the good of the church", an extraordinary scene of a pope explaining himself to his flock that unfolded in his first appearance since dropping the bombshell announcement. (AP Photo/Alessandro Bianchi, Pool)