y had taken the government of the city to
themselves, and regulated it according to their own pleasure, they at
once became at enmity with the popes, who received far more injuries
from them than from any Christian potentate. And while the popes caused
all the west to tremble with their censures, the people of Rome were
in open rebellion against them; nor had they or the popes any other
purpose, but to deprive each other of reputation and authority.

Nicholas II. now attained the papacy; and as Gregory V. had taken
from the Romans the right to create an emperor, he in the same manner
determined to deprive them of their share in the election of the pope;
and confined the creation to the cardinals alone. Nor did this satisfy
him; for, having agreed with the princes who governed Calabria and
Puglia, with methods which we shall presently relate, he compelled the
officers whom the Romans appointed to their different jurisdictions,
to render obedience to him; and some of them he even deprived of their
offices. After the death of Nicholas, there was a schism in the church;
the clergy of Lombardy refused obedience to Alexander II., created at
Rome, and elected Cadolo of Parma anti-pope; and Henry, who hated
the power of the pontiffs, gave Alexander to understand that he must
renounce the pontificate, and ordered the cardinals to go into Germany
to appoint a new pope. He was the first who felt the importance of
spiritual weapons; for the pope called a council at Rome, and deprived
Henry of both the empire and the kingdom. Some of the people of Italy
took the part of the pope, others of Henry; and hence arose the factions
of the Guelphs and the Ghibellines; that Italy, relieved from the
inundations of barbarians, might be distracted with intestine strife.
Henry, being excommunicated, was compelled by his people to come into
Italy, and fall barefooted upon his knees before the pope, and ask his
pardon. This occurred in the year 1082. Nevertheless, there shortly
afterward arose new discords between the pope and Henry; upon which the
pope again excommunicated him, and the emperor sent his son, also named
Henry, with an army to Rome, and he, with the assistance of the Romans,
who hated the pope, besieged him in the fortress. Robert Guiscard them
came from Puglia to his relief, but Henry had left before his arrival,
and returned to Germany. The Romans stood out alone, and the city was
sacked by Robert, and reduced to ruins. As from thi