Master of Codex 167, Saints Braulio of Zaragoza and Isidore of Seville
Second half of the 10th century
Manuscript illustration on parchment, 13.3 x 11.4 in. (33.8 x 29 cm.)
Einsiedeln Abbey Library (Switzerland)
Braulio was a disciple and friend of Isidore who collaborated on some of his works. As bishop of Zaragoza he is pictured with a pallium (the white object hanging from his shoulders) and a crozier. Neither he nor Isidore wears a mitre, which was not worn outside of Rome until the 11th century (Catholic Encyclopedia, s.v. "Mitre").
Both men are labeled E¯PS for episcopus, "bishop," but Isidore's image does not put him in episcopal garb. Instead he is pictured as a scribe, with a pen in one hand and a pen knife (for erasures) in the other.
Read more about St. Isidore of Seville.
Source: The Yorck Project via Wikimedia Commons