Note 404 — Chapter VI · REPAIRS ON THE THEODOSIAN WALLS.
Reading edition
The date of her death is not known. Muralt is mistaken in saying that she died in 750. The Maria who died in that year was the second wife of Constantine Copronymus; not the widow, as Muralt has it, of Leo III. Cf. Nicephorus, Patriarch of Consple., p. 73.