EUSEBIUS, surnamed PAMPHILUS, a celebrated
bishop of Cæsarea in Palestine, and one of the most
learned men of his time, was born in Palestine about
the latter end of the reign of Gallienus. He was the
intimate friend of Pamphilus the Martyr; and, after
his death, took his name in honour to his memory. He
was ordained bishop of Cæsarea in 313. He had a con-
siderable share in the contest relating to Arius; whose
cause he, as well as several other bishops of Palestine,
defended, being persuaded that Arius had been un-
justly persecuted by Alexander bishop of Alexandria.
He assisted at the council of Nice in 325; when he
made a speech to the emperor Constantine on his coming
to the council, and was placed next him on his right
hand. He was present at the council of Antioch, in
which Eustathius bishop of that city was deposed; but
though he was chosen by the bishop and people of
Antioch to succeed him, he absolutely refused it. In
335, he assisted at the council of Tyre held against
Anathasius; and at the assembly of bishops at Jerusa-
lem, at the time of the dedication of the church there.
By these bishops he was sent to the emperor Constantine
to defend what they had done against Athanasius;
when he pronounced the panegyric made on that em-
peror during the public rejoicings in the beginning of
the 30th year of his reign, which was the last of his
life. Eusebius survived the emperor but a short time,
for he died in 338. He wrote, 1. An Ecclesiastical
History, of which Valetius has given a good edition in
Greek and Latin; 2. The life of Constantine; 3. A
treatise against Hierocles; 4. Chronicon; 5. Prepara-
tiones Evangelicae; 6. De demonstratione Evangelica; of
which there are but 10 books extant out of 20; and
several other works, some of which are lost.