Naghash Hakob Hovnatanian was a son and student of Hovnatan Nagash, was born in Yerevan, from 1710 lived in Tiflis. Together with his father ( Hovnatan Nagash )and brother (Harutyun Hovnatanian (1706 -?) painted a Cathedral in Echmiadzin and a few churches in Yerevan.He was also a miniaturist which was tradition for his family.
"Popular Art Encyclopedia" 2nd book, publishing house "Soviet Encyclopedia", 1986
M. Kazarian "Artists Hovnatanian" Moscow, 1969