Siege of Dumbarton
{'<entity_0>': 'Siege of Dumbarton', '<entity_1>': 'Dumbarton Castle', '<entity_2>': 'siege', '<entity_3>': '870'}
[['Siege of Dumbarton', 'end time', '870'], ['Siege of Dumbarton', 'start time', '870'], ['Siege of Dumbarton', 'instance of', 'siege'], ['Siege of Dumbarton', 'location', 'Dumbarton Castle']]
The <entity_0> was a successful four-month <entity_2> of the Brittonic fortress at <entity_1> in <entity_3>, initiated by the Viking leaders Amlaíb, King of Dublin, and Ímar. By <entity_3>, the settlement on <entity_1> was the center of a small but wealthy kingdom. Accounts of the <entity_2> in Welsh chronicles describe the destruction of the summit of <entity_1>. Following the <entity_2> the royal and religious centre of the kingdom moved 12 miles (19 km) upriver to Govan, while <entity_1> may have become a Viking outpost for a period.
['siege']