The Ilay Series
This page describes the different illustrations on the backs of each denomination of our Ilay series banknotes. More information about the shared features of the notes' fronts can be found on the page about our current issue banknotes.
£100 note, Balmoral Castle
This royal residence in Deeside was built in 1853. It was a great favourite of Queen Victoria and Prince Albert. Appearing on the highest-value note in the series, it stands as an appropriate reminder of the bank's royal origins.
£50 note, Inverness Castle
This note, first issued on 14 September 2005, was the first £50 note to be issued by RBS since 1727. Inverness Castle was chosen in recognition of Inverness becoming Scotland's fifth city in 2001.
£20 note, Brodick Castle
This is the only castle in the series not on the mainland of Scotland, and was the home from which the Dukes of Montrose held the Isle of Arran. The Dukes were closely associated with the bank in its early years.
£10 note, Glamis Castle
Glamis Castle was reputedly the scene of Macbeth's murder of King Malcolm II in 1031. It is the seat of the Earl of Strathmore, whose ancestors were deputy governors of The Royal Bank of Scotland. It was also the childhood home of the late Queen Elizabeth, the Queen Mother.
£5 note, Culzean Castle
Situated on a cliff on the Ayrshire coast 11 miles south of Ayr, this former home of the Marquis of Ailsa was built by the famous architect Robert Adam, a customer of RBS subsidiary Drummonds Bank. This note was superseded by a new design in 2016.
£1 note, Edinburgh Castle
Edinburgh's Castle Rock, rising 200 feet above the city's Princes Street, has been a fortification since prehistoric times. The castle itself is steeped in antiquity and since the 11th century has been closely linked with the history of Scotland.