Benedict XVI toasts 90th birthday with mug of beer

On a sunny, mild day, guests sat outside the monastery on Vatican City grounds where Benedict has lived since he became the first pontiff to resign in 600 years.

Benedict XVI, who resigned as Pope in 2013, has celebrated his 90th birthday with a mug of beer and the company of visitors from his native Bavaria in Germany.

Photos by the Vatican newspaper L'Osservatore Romano of the celebration show Benedict sipping a beer while his brother, Monsignor Georg Ratzinger, also enjoys a drink.