weapons. The prince left for Newburgh, and the town, by forfeiture of the Keiths, suffered for its loyalty. The estate of the Earl Marischal was forfeited in 1716, sold to York Buildings Company, then to the governors of Merchant Maiden Hospital, Edinburgh, in 1726. In 1728, the diocese of Aberdeen reported that Peterhead was "about 230 families; the people are sober and courteous, and agree well amongst themselves, which has now become a rare character. Market day is Friday, but neglected. The town is much resorted to in July and August, because the famous well here is then in its strength". The harbour was proving so valuable that in 1738, the Leith shipmasters attested that "the harbour of Peterhead is in our opinion the best situate of any place in Scotland for all ships trading on the north seas". In 1775, the "feu superior", the Merchant Maiden Company of Edinburgh, transferred to the Committee of Feuars of Peterhead the Tolbooth, Tolbooth Green and other sundry land. The new Peterhead Town House building replaced the tolbooth in 1788. Meanwhile, the enclosed lands of South Bay were being developed into "the beautifully homogeneous district of elegant houses for the accommodation of strangers and sea captains, much of which still survives". Fishermen began to move to Roanheads on the north-east shoulder of the peninsula. Roanheads was laid out in today's form by 1771, and some of the few surviving pantiled houses may be original. From 1788, the port developed a speciality in whaling. It eventually became Britain's largest whaling port. 19th century In 1815, before the increase in herring popularity, there were 72 vessels registered to Peterhead operating from the port; by 1850 there were over 400. North Harbour and the dry dock were built by Rennie and Thomas Telford between 1818 and 1822. They were improved fifteen years later. The junction canal was built in 1849, while the south and west piers of North Harbour were built by David Stevenson in 1855. The southern part of North Harbour (Middle Harbour) dates from 1872. It was constructed by David and Thomas Stevenson, with improvements made between 1893 and 1897 by William Shield, a local worker. A lifeboat station was first established in 1865. Peterhead convict prison was opened in 1888, gaining a reputation as one of Scotland's toughest prisons. The same year, Peterhead was made a head port, its limits extending southward to