Georg Ratzinger, told CNN in Regensburg, Germany, that Benedict had come to his decision without seeking his brother's advice.

CNN: February 12, 2013 -- Updated 2035 GMT (0435 HKT)

Mr. Pistorius was born in Johannesburg in 1986 without fibulas in both legs. 11 months later, his parents decided to follow medical advice and have his legs amputated below the knee.

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