Question: Who is Henry Iii, Count Of Schauenburg-Holstein's maternal grandmother?
Sentence (from "Henry III, Count of Schauenburg-Holstein"): Henry III, Count of Schauenburg-Holstein (d. February 1421 in Bordesholm) was Bishop of Osnabrück as Henry I from 1402 to 1410, and also Count of Holstein-Rendsburg from 1404 until his death.
Relevant evidence: No