Yazdanfar was an Iranian noble who ruled Qom as a Sasanian vassal. In the late 640s/early 650s, the invading Arabs, who had conquered most of the Sasanian Empire, reached Qum, where Yazdanfar made peace with them, giving them a village to settle in. The reason for his hospitality was that his domain often suffered from raids by the Daylamites, which he hoped would now be defended by the Arabs.
Sources
- Kennedy, Hugh (2007). The Great Arab Conquests: How the Spread of Islam Changed the World We Live In. Philadelphia, Pennsylvania: Da Capo Press. ISBN 978-0-306-81740-3.
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