Thanks, Demetrios, that is a great list of what little we know about Matius!

As he wrote Cicero in the fall of 44 BC:

"I am well aware of the criticisms which people have leveled at me since Caesar's death. They make it a point against me that I bear the death of a friend hard and am indignant that the man I loved has been destroyed. They say that country should come before friendship . . . I acknowledge that I have not yet arrived at that philosophical level. It was not Caesar I followed in the civil conflict, but a friend whom I did not desert, even though I did not like what he was doing." Matius to Cicero, 124.

Since he wrote (courtesy of Cicero) the single most heart-felt requiem for Caesar, it seems to me sad that this is one Roman that apparently fell through the historical cracks.