Castle Sween is thought to be one of the earliest stone castles built in Scotland, having been built sometime in the late twelfth century. The castle's towers were later additions to wooden structures which have now since vanished.
Castle Sween takes its name from Suibhne, whose name was Anglicised as 'Sween'. He was thought to have built the castle. Suibhne was thought to have been a grandson of Hugh the Splendid O'Neill who died in 1047. In the thirteenth century, the Clan MacSween governed lands extending as far north as Loch Awe and as far south as Skipness Castle on Loch Fyne. In the later half of the thirteenth century the MacSween lands of Knapdale passed into the hands of the Stewart Earls of Menteith.
By the time of the Wars of Scottish Independence the MacSweens entered into the service of King Edward I of England in the hope of recovering their lands from the Earl of Menteith, however when Robert the Bruce became King of Scotland he displaced the MacSweens from their lands. After Robert the Bruce had defeated MacDougall Lord of Lorne in 1308, he then laid siege to Alasdair Og MacDonald in Castle Sween. Alastair gave himself up and was disinherited by Robert Bruce who then granted Islay to Alasdair's younger brother, Angus Og, the king's loyal supporter, who also received the Castle Sween in Kintyre from the King.
In 1310, Edward II of England granted John MacSween and his brothers their family's ancestral lands of Knapdale, (though by then Castle Sween was held by Sir John Menteith). It is possible that this could be the 'tryst of a fleet against Castle Sween', recorded in the Book of the Dean of Lismore, which tells of the attack of John MacSween on Castle Sween.
In 1323, after the death of Sir John Menteith, the Lordship of Arran and Knapdale passed to his son and grandson. In 1376 half of Knapdale, which included Castle Sween, passed into possession of the MacDonald Lords of the Isles, by grant of Robert II of Scotland to his son-in-law John I, Lord of the Isles.
In 1647, during the Wars of the Three Kingdoms, Castle Sween was attacked and burnt by Alasdair MacColla and his Irish Confederate followers.
References:The Temple of Edfu is one of the best preserved ancient shrines in Egypt. It was built in the Ptolemaic Kingdom between 237 and 57 BC.
Edfu was one of several temples built during the Ptolemaic Kingdom, including the Dendera Temple complex, Esna, the Temple of Kom Ombo, and Philae. Its size reflects the relative prosperity of the time. The present temple initially consisted of a pillared hall, two transverse halls, and a barque sanctuary surrounded by chapels. The building was started during the reign of Ptolemy III Euergetes and completed in 57 BC under Ptolemy XII Auletes. It was built on the site of an earlier, smaller temple also dedicated to Horus, although the previous structure was oriented east–west rather than north–south as in the present site.