Question: Who is the maternal grandmother of Walter Stewart, Lord Of Fife?
Sentence (from "Elizabeth Mure"): On 27 March 1371, "The Lord John (who later took the title of King Robert III, changing his name because of what he saw as John de Baliol's unpatriotic desecration of the name John), Earl of Carrick and Steward of Scotland, first-born son of King Robert II" was declared heir to the Crown by Parliament in Scone Abbey.
Relevant evidence: No