The story runs that Wallace sacked the town of Dumbarton, and laid waste the castle of Rosneath—the modern village of Rosneath sits on the opposite side of the Gare Loch from the sites of Faslane, Shandon, and Ardincaple castles. He then proceeded across the loch to Faslane Castle, where he was warmly received by Mormaer Maol Choluim I. In 1543, Faslane was bestowed by Matthew Stewart, Earl of Lennox on Adam Colquhoun. In 1567, it and Garelochhead were acquired by Campbell of Ardkinlass, who sold it before 1583 to Campbell of Carrick. In 1693 it was in the hands of Sir John Colquhoun of Luss, who feud it to Archibald MacAulay of Ardincaple. According to the 19th-century historian Joseph Irving, in the mid 18th century the ruined Faslane Castle "furnished a shelter to the last representative of a once powerful family"—the last clan chief of the MacAulays of Ardincaple. Fraser stated in 1869, that no buildings or any part of the castle was then visible. He stated that the only remaining trace of the castle was a green mound, which overlooked the junction of two deep glens, between two small rivulets of which the banks were steep. William Charles Maughan stated that the site of the castle could be distinguished, at the time of his writing, "by a small mound near the murmuring burn which flows into the bay". Maughan also wrote that at Faslane there stood an oak tree at place called in Scottish Gaelic "Cnoch-na-Cullah" (English: "knoll of the cock"); and that according to legend, when a cock crowed beneath the branches of the old oak upon the knoll, a member of Clan MacAulay was about to die. It has been stated that the site of Faslane Castle was destroyed when the West Highland Railway was built over top of the site, in 1891–1894. Near the site of the castle is St Michael's Chapel (). Fraser described the ruins of the chapel as measuring . He stated that stones had been removed from the site, except for two gable ends that still stood at the time of his writing (1869). He wrote that the foundations of what was reputed to be the priest's house, could still be seen between the chapel and the barn.