Michael the Syrian
Two other dioceses are mentioned only once, and may have been ephemeral. The unlocalised diocese of Khorasan, apparently to be distinguished from both Aprah and Herat, is mentioned in the first half of the ninth century in the lists of Michael the Syrian. The diocese of Beth Parsaye (literally, 'the country of the Persians') also features in the lists of Michael the Syrian for the same period, and has been tentatively localised by Dauvillier in eastern Iran.