Selmun Palace was built by the Monte di Redenzione degli Schiavi, a charity that was founded during the reign of Grand Master Alof de Wignacourt in 1607 to finance the redemption of Christians enslaved by Ottomans or Barbary corsairs. The land on which the palace was built was originally a coastal lookout post, and was donated to the Monte di Redenzione by Caterina Vitale in 1619. The palace used to be rented out to knights of the Order of Saint John as a place to relax and hunt wild rabbits, which were commonly found in the area. The rent money contributed to the redemption fund.
The palace itself was built the sometime in the 18th century, although the exact date of construction is not known. The earliest record of the structure is on a 1783 map, when it was referred to as Torre Nuova (new tower). The palace's architect is unknown, but it is sometimes attributed to Domenico Cachia.
Selmun Palace is an example of Baroque architecture. It has a square plan with four pseudo-bastions on each side, the design of which was inspired by the Verdala Palace and the Wignacourt towers. These bastions as well as fake embrasures were mainly built for aesthetic purposes, and the structure was never intended for military use. Despite this, it served as a deterrent for corsairs looking for a potential landing spot, since it looked like a military outpost when viewed from the sea. The main facade has three doors, with the main one being surrounded by a decorative portal. An ornate window on the upper floor and a bell-cot on the roof surmount the main door. A balcony surrounds the perimeter of the entire building.
A chapel dedicated to Our Lady of Ransom was located within the palace. In the 1980s, a new chapel with the same dedication was built outside the palace.
References:Inverness Castle sits on a cliff overlooking the River Ness. The red sandstone structure evident today was built in 1836 by architect William Burn. It is built on the site of an 11th-century (c. 1057) defensive structure. Today, it houses Inverness Sheriff Court.
The castle is said to have been built by Máel Coluim III of Scotland, after he had razed to the ground the castle in which Macbeth of Scotland according to much later tradition, murdered Máel Coluim"s father Donnchad I of Scotland, and which stood on a hill around 1 km to the north-east.
The first Inverness Castle was partially destroyed by King Robert I of Scotland and a replacement castle was sacked in the 15th century by the Clan Donald during the Siege of Inverness (1429). The castle was occupied during the Raid on Ross in 1491.
In 1548 another castle with tower was completed by George Gordon, 4th Earl of Huntly (1514–1562). He was constable of the castle until 1562.