Question: Who is the paternal grandfather of Na'Akueto La'Ab?
Sentence (from "Gebre Mesqel Lalibela"): Taddesse Tamrat suspects that the end of Lalibela's rule was not actually this amiable, and argues that this tradition masks a brief usurpation of Na'akueto La'ab, whose reign was ended by Lalibela's son, Yetbarak.
Relevant evidence: No