Augustine of Hippo

(iv. de Trin. c. 9. [v.]) Or it may be that this number fits in with the perfection of the Lord’s Body. For six times forty-six are two hundred and seventy-six days, which make up nine months and six days, the time that our Lord’s Body was forming in the womb; as we know by authoritative traditions handed down from our fathers, and preserved by the Church. He was, according to general belief, conceived on the eighth of the Kalends of April, (March 24) the day on which He suffered, and born on the eighth of the Kalends of January1. (Dec. 25) The intervening time contains two hundred and seventy-six days, i. e. six multiplied by forty-six.