Question: Who is the paternal grandmother of Theuderic Iii?
Sentence (from "Theuderic III"): Theuderic III (or Theuderich, Theoderic, or Theodoric; in French, "Thierry") (c.651–691) was the king of Neustria (including Burgundy) on two occasions (673 and 675–691) and king of Austrasia from 679 to his death in 691.
Relevant evidence: No