Moridunum was a Roman fort and town in the Roman province of Britannia, today in Carmarthen. The initial fort is believed to date from about AD 75, possibly replacing the hillfort on Merlin's Hill. The fort lasted until about 120, when the associated civilian vicus took over and the place became a town.
A street-grid was laid out in the town and a public bath house built, and possibly a mansio. The forum and basilica were probably under the most built-up area of the present town on the Cardo or main street. There were narrow shops fronting the streets, as well as evidence of metalworking. Large domestic homes of timber were rebuilt in stone in the late 3rd or early 4th century. A 1st/2nd century Romano-Celtic style temple has also been excavated. A turf bank and ditch was erected around the town in the mid-2nd century and a stone wall added some time later.
East of the old town is one of only seven surviving Roman amphitheatres in the United Kingdom. It has the only above-ground Roman remains in the town, and was excavated in 1968. The arena itself is 46 by 27 meters. The circumference of the cavea seating area is 92 by 67 meters It had stone walls and wooden seating and was much larger than would be expected for the size of the town.
References:Doune Castle was originally built in the thirteenth century, then probably damaged in the Scottish Wars of Independence, before being rebuilt in its present form in the late 14th century by Robert Stewart, Duke of Albany (c. 1340–1420), the son of King Robert II of Scots, and Regent of Scotland from 1388 until his death. Duke Robert"s stronghold has survived relatively unchanged and complete, and the whole castle was traditionally thought of as the result of a single period of construction at this time. The castle passed to the crown in 1425, when Albany"s son was executed, and was used as a royal hunting lodge and dower house.
In the later 16th century, Doune became the property of the Earls of Moray. The castle saw military action during the Wars of the Three Kingdoms and Glencairn"s rising in the mid-17th century, and during the Jacobite risings of the late 17th century and 18th century.