[2] He famously planned the assault and led a small force of 150 men in 1571 that scaled the cliffs and embattlements to expel the castle garrison loyal to Catholic Queen Mary
Thomas Crawford of Jordanhill:  He famously planned the assault and led a small force of 150 men in 1571 that scaled the cliffs and embattlements to expel the castle garrison loyal to Catholic Queen Mary from Dumbarton Castle. Dumbarton Castle:  It overlooks the Scottish town of Dumbarton, and sits on a plug of volcanic basalt known as Dumbarton Rock which is 240 ft high.
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