The residence of the Popes which was named the Lateran Palace was built by Lateranus Palutius, whom Nero put to death to seize his goods. It was given in the year 313 by Constantine the Great to Saint Miltiades, Pope, and was inhabited by his successors until 1308, when they moved to Avignon. The Lateran Basilica built by Constantine near the palace of the same name, is the first Basilica of the West. Twelve councils, four of which were ecumenical, have assembled there, the first in 649, the last in 1512.
If for several centuries the Popes have no longer dwelt in the Palace, the primacy of the Basilica is not thereby altered; it remains the head of all churches. Saint Peter Damian wrote that “just as the Saviour is the Head of the elect, the church which bears His name is the head of all the churches. Those of Saints Peter and Paul, to its left and its right, are the two arms by which this sovereign and universal Church embraces the entire earth, saving all who desire salvation,