在中世紀要塞上。厄克特城堡修建於13世紀至16世紀,曾是蘇格蘭獨立戰爭的舞台之一。17世紀之後城堡被廢棄,現在是一個觀光景點。 Alcock, Leslie; Alcock, Elizabeth A. Reconnaissance excavations on Early Historic fortifications
Creation and Destruction of a Kingdom. Cambridge. ISBN 0-521-81335-2. Alcock, Leslie, Kings and Warriors, Craftsmen and Priests in Northern Britain AD 550–850
Castle. Historic Scotland. [27 November 2012]. (原始内容存档于2016-03-04). Alcock, Leslie; Alcock, Elizabeth A. Reconnaissance excavations on Early Historic fortifications