General Notes

Marmaduke, successor to his brother, Robert. This gallant soldier, so distinguished in the Scottish wars, was summoned to parliament as a Baron from 22 February, 1307, to 18 September, 1322. His lordship m. Isabel, dau. of William de Ros, of Igmanthorpe, co. York, and had issue, William, Robert, Thomas, Lucia, Margaret, and Katherine. His lordship d. in 1323, and was s. by his eldest son, William de Thweng, 2nd baron. [Sir Bernard Burke, Dormant, Abeyant, Forfeited and Extinct Peerages, Burke's Peerage Ltd, London, England, 1883, reprinted by Genealogical Publishing Co., Baltimore, MD, 1996]

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A Baron - Lord Thweng
Fought in the Scottish Wars
1292 - Present at Newcastle when John de Baliol did hamage to King Edward I
1294-1296 - Fought in Gascony
1296 - Present at the capture of Berwick
1297, 9/11 - Commander of the van at the battle of Stirling Bridge
1297 - Commanded Stirling Castle
1297-1299 - A prisoner of William Wallace in Dumbarton Castle
1300's - Commander in Scotland against the rebels
1306 - Fought at the battle of Bannockburn against Robert the Bruce
1294,1307-1322 - A Parlimentary Baron
1314 - At the battle of Bonnockburn against Robert the Bruce
1314 - An honored prisoner of Bruce's
1321 - Joined the Earl of Lancaster against King Edward II
1322 - At the battle of Boroughbridge
1323 - Interred in the north aisle of the chancel fo Guisborough Priory

Held the fiefs of Kilton, Lund, and Thweng of the Percy family by knight's service.
Lord of Kilton Castle
Lord of the manors of Thweng, Octon, and Swathorp, in the East Riding
Lord of the manors Lythe, Hinderwell, Kilton, Kirkleatham, and Thorp, in the Cleveland district
Ancestral File Number:<AFN> HK9M-MH