Sempiternus Rex

Sempiternus Rex
Encyclical of Pope Pius XII
Coat of arms of Pope Pius XII
Signature date 8 September 1951
Number21 of the pontificate
Text

Sempiternus Rex is an encyclical of Pope Pius XII dated in Rome at St. Peter on 8 September 1951, the feast of the Nativity of the Blessed Virgin Mary, on the 1500th anniversary of the Ecumenical Council of Chalcedon, which declared Christ to be both fully human and fully divine.[1]

  1. ^ Sempiternus Rex 1951, AAS 625