Pergamos

Boyd’s Bible Dictionary:

(heights). Pergamum in R. V. A city of Mysia, in Asia Minor, celebrated for its library, which was transferred to Alexandria. Seat of one of the “seven churches” (Rev. 1:11; 2:12-17).

Concise Bible Dictionary:

Royal city of Mysia in Asia Minor: it was not visited by Paul as far as recorded. The church there is one of the seven in Asia to which the addresses in the Revelation were sent. The saints dwelt where Satan’s throne was—the city was renowned for its idolatry (Rev. 1:11; Rev. 2:12). The city is still in existence, and is called Bergama, with a population of about 20,000, some 2,000 of whom are nominally Christian.
See REVELATION.

Strong’s Dictionary of Greek Words:

Greek:
Πέργαμος
Transliteration:
Pergamos
Phonic:
per’-gam-os
Meaning:
from 4444; fortified; Pergamus, a place in Asia Minor
KJV Usage:
Pergamos

Jackson’s Dictionary of Scripture Proper Names:

much marriage

Potts’ Bible Proper Names:

Elevated; height; fortified:―seat of one of the seven churches, Rev. 1:11. {Elatus}