Andreas of Caesarea

Karl Krumbacher assigned him to the first half of the sixth century.

[1] However, today it is unquestionable that his life spanned the late sixth/early seventh centuries.

(The very first Greek commentary on Revelation may barely predate Andrew's work and is attributed to Oikoumenios.

)[3] Most subsequent Eastern Christian commentators of the Book of Revelation have drawn heavily upon Andrew and his commentary,[4] which was preserved in about 100 Greek manuscripts,[5] and was also translated into Armenian, Georgian, and Church Slavonic.

[6] Andrew's most important contribution was that he preserved many existing Eastern traditions associated with Revelation, both oral and written.