Question: Who is the paternal grandmother of Matthew, Count Of Boulogne?
Sentence (from "Thierry, Count of Flanders"): With a record of four campaigns in the Levant and Africa (including participation in the Second Crusade, the failed 1157–1158 siege of the Syrian city Shaizar, and the 1164 invasion of Egypt), he had a rare and distinguished record of commitment to crusading.
Relevant evidence: No