Assertion: ʿabbāsid caliph | /r/CapableOf | trace his descent
Facets:
value: to al-manṣūr
type: LOCATION
value: directly
type: MANNER
Source sentences:
text: Furthermore, he arranged the succession in favour of his son, al-Mahdī, and every future ʿAbbāsid caliph could trace his descent directly to al-Manṣūr.