Question: Who is Thomas De Monthermer, 2Nd Baron Monthermer's maternal grandmother?
Sentence (from "Robert Clifford, 3rd Baron Clifford"): He was the second son of Robert de Clifford, 1st Baron de Clifford and Maud de Clare, eldest daughter of Thomas de Clare, Lord of Thomond and Juliana FitzGerald.
Relevant evidence: No