Question: Who is the mother-in-law of Bertha Of Savoy?
Sentence (from "Bertha of Savoy"): Bertha of Savoy (21 September 1051 – 27 December 1087), also called Bertha of Turin, a member of the Burgundian House of Savoy, was Queen consort of Germany from 1066 and Empress consort of the Holy Roman Empire from 1084 until 1087 as the first wife of the Salian emperor Henry IV.
Relevant evidence: Yes