Dumbarton Castle (Scottish Gaelic: Dùn Breatainn, pronounced [t̪unˈpɾʲɛʰt̪ɪɲ]; Welsh: Alt Clut) has the longest recorded history of any stronghold in Scotland. It sits on a volcanic plug of basalt known as Dumbarton Rock which is 240 feet (73 m) high and overlooks the Scottish town of Dumbarton.
>>>PUT SHARE BUTTONS HERE<<<
👉 Dumbarton Rock in the context of Kingdom of Strathclyde
Strathclyde (Welsh: Ystrad Clud, "valley of the Clyde"), also known as Cumbria, was a Brittonic kingdom in northern Britain during the Middle Ages. It comprised parts of what is now southern Scotland and North West England, a region the Welsh tribes referred to as Yr Hen Ogledd (“the Old North"). At its greatest extent in the 10th century, it stretched from Loch Lomond to the River Eamont at Penrith. Strathclyde seems to have been annexed by the Goidelic-speaking Kingdom of Alba in the 11th century, becoming part of the emerging Kingdom of Scotland.
In its early days it was called the kingdom of Alt Clud, the Brittonic name of its capital, and it controlled the region around Dumbarton Rock. This kingdom emerged during Britain's post-Roman period and may have been founded by the Damnonii people. After the sack of Dumbarton by a Viking army from Dublin in 870, the capital seems to have moved to Govan and the kingdom became known as Strathclyde. It expanded south to the Cumbrian Mountains, into the former lands of Rheged. The neighbouring Anglo-Saxons called this enlarged kingdom Cumbraland. We do not know what the inhabitants called their polity, though it may have been referred to as “Cumbria.”
In this Dossier
Dumbarton Rock in the context of Cenél Comgaill
Comgall mac Domangairt was king of Dál Riata in the early 6th century. He was the son of Domangart Réti and grandson of Fergus Mór. The Annals of Ulster report his death in 538, 542 and 545, the Annals of Tigernach in 537.
Dumbarton Rock in the context of Siege of Dumbarton
The siege of Dumbarton was a successful four-month siege of the Brittonic fortress at Dumbarton Rock in 870, initiated by the Viking leaders Amlaíb, King of Dublin, and Ímar. Dumbarton was capital of the Kingdom of Alt Clut, the only surviving Brittonic kingdom outside of Wales. It represented a valuable target for the Viking invaders, who were likely motivated by strategic considerations, as well as loot. The attackers may have wished to remove Alt Clut as a maritime power, and the location and defensiveness of Dumbarton itself was of major value.
The siege lasted four-months, a length of time unprecedented in the history of Viking warfare in the British Isles, and ended when the defenders ran out of water. After the siege numerous prisoners were taken and sold into slavery in Dublin. Following this defeat, the power centre of Alt Clut moved to the vicinity of Govan, and it became known as the Kingdom of Strathclyde. The loss of Dumbarton caused the kingdom to increasingly fall under the influence of the Scottish Kingdom of Alba.
Dumbarton Rock in the context of List of kings of Strathclyde
The list of the kings of Strathclyde concerns the kings of Alt Clut, later Strathclyde, a Brythonic kingdom in what is now western Scotland.
The kingdom was ruled from Dumbarton Rock, Alt Clut, the Brythonic name of the rock, until around 870 when the rock was captured and sacked by Norse-Gaels from the kingdom of Dublin after a four-month siege. Thereafter the centre of the kingdom moved to Govan, previously a religious centre. The kingdom is also known as Cumbria after 870, and indeed may have ruled parts of the modern English region of Cumbria in the 10th and 11th centuries. In the 11th century the kingdom of Alba conquered Strathclyde. It remained a distinctive area, with different laws, using the Cumbric language alongside Gaelic, until the 12th century.