New Vatican Swiss Guards wear their uniforms and armors prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. The ceremony is held each May 6 to commemorate the day in 1527 when 147 Swiss Guards died protecting Pope Clement VII during the Sack of Rome. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

New Vatican Swiss Guards wear their uniforms and armors prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

Vatican Swiss guards march after a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

Vatican Swiss guards, one of them, left, holding up his right arm and showing three fingers to represent the Holy Trinity, attend a swearing-in ceremony, at the Vatican, Tuesday, May 6, 2014. The ceremony is held each May 6 to commemorate the day in 1527 when 147 Swiss Guards died protecting Pope Clement VII during the Sack of Rome. The Vatican's Swiss Guards has sworn in 30 new recruits in a colorful ceremony in a Vatican courtyard. (Photo by Alessandra Tarantino/AP Photo)

New Vatican Swiss Guards wear their uniforms and armors prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

Dominic Bergamin, left, a new Vatican Swiss Guard, is helped fasten his helmet by his wife Joanne, prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

Vatican Swiss guards march after a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Alessandra Tarantino/AP Photo)

New Vatican Swiss Guards wear their uniforms and armors prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

A new recruit of the Vatican's elite Swiss Guard stands at attention during the swearing-in ceremony at the Vatican May 6, 2015. The Swiss Guard, founded in 1506, consists of 100 volunteers who must be of Swiss nationality, Catholic, single, at least 174 cm (5.7 ft) tall and without a beard. New recruits are sworn in every year on May 6 to commemorate the day where 147 Swiss soldiers died defending the Pope during an attack on Rome in 1527. (Photo by Giampiero Sposito/Reuters)

New recruits of the Vatican's elite Swiss Guard stand at attention during the swearing-in ceremony at the Vatican May 6, 2015. (Photo by Giampiero Sposito/Reuters)

A new recruit of the Vatican's elite Swiss Guard plays a wind instrument as they march during the swearing-in ceremony at the Vatican May 6, 2015. (Photo by Giampiero Sposito/Reuters)

New recruits of the Vatican's elite Swiss Guard march during the swearing-in ceremony at the Vatican May 6, 2015. (Photo by Giampiero Sposito/Reuters)

New recruits of the Vatican's elite Swiss Guard march during the swearing-in ceremony at the Vatican May 6, 2015. (Photo by Giampiero Sposito/Reuters)

New Vatican Swiss Guards line up prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

Vatican Swiss guards march on their way to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Alessandra Tarantino/AP Photo)

New Vatican Swiss Guards wear their uniforms and armors prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

Vatican Swiss guards march after a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Alessandra Tarantino/AP Photo)

Vatican Swiss guards, one of them, holding up his right arm and showing three fingers to represent the Holy Trinity, attend a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Alessandra Tarantino/AP Photo)

Vatican Swiss guards line up during a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Alessandra Tarantino/AP Photo)

Vatican Swiss guards march on their way to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Alessandra Tarantino/AP Photo)

Dominic Bergamin, left, a new Vatican Swiss Guard, is is kissed by his wife Joanne, prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

New Vatican Swiss Guards line up prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

New Vatican Swiss Guards wear their uniforms and armors prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)

New Vatican Swiss Guards line up prior to a swearing-in ceremony, at the Vatican, Wednesday, May 6, 2015. (Photo by Ettore Ferrari/AP Photo/Pool Photo)