Conclave: How a new pope is chosen

Witness History

In April 2005, Cardinal Joseph Ratzinger became Pope Benedict XVI following the death of Pope John Paul II.

The new leader of the Catholic Church was elected after four ballots of the papal conclave.

The late Cardinal Cormac Murphy-O'Connor was one of 115 cardinals who took part.

He spoke to Rebecca Kesby in 2013.

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(Photo: Cardinals conduct their final mass before entering into the conclave in 2005. Credit: Getty Images)