Christian-Muslim Relations 600 - 1500

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The monk Eustathius
(453 words)

Usṭāth al-Rāhib

Date of Birth: Unknown, possibly early 9th c. (and not later than 10th c.)

Place of Birth: Unknown, possibly Iraq

Date of Death: Unknown, possibly later 9th century

Place of Death: Unknown, possibly Iraq


Little is known about the monk Eustathius (Usṭāth), author of a wide-ranging Arabic-language apology for the Christian faith, although scattered indications point to a Syrian Orthodox (mia…

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Salah and Mark Swanson, Eid, “The monk Eustathius”, in: Christian-Muslim Relations 600 - 1500, General Editor David Thomas. Consulted online on 22 November 2019 <>
First published online: 2010

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