Assertion: caliph's son | /r/HasProperty | husayn
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text: son Yazīd, for example, would do battle with and ultimately kill Ali’s son Husayn, who is regarded by the Shi’is as being the third caliph (after Ali and Hasan), and whose death in Karbala, Iraq is commemorated every year with scenes of self-flagellation by the Shi’i faithful.