Local tradition tells also how once on a time there came to Sewingshields, to visit Arthur, a great chieftain from the wild north, one named Cumin. And when Cumin departed from the castle to go back to his own land, he bore with him a certain gold cup that Arthur, in token of friendship, had given to him. But sundry of the King's retainers, having learned that the Scot was bearing away with him this cup, greatly desired that they might themselves possess it, and they pursued Cumin, and slew him ere he had gone many miles. Wherefore Arthur caused a cross to be erected there on the spot where the slain man fell; and the place is called Cumming's Cross to this day.

Of the building of the castle of Sewingshields, or Seven-shields, there is the legend told in Harold the Dauntless:

"The Druid Urien had daughters seven,
Their skill could call the moon from heaven;
So fair their forms and so high their fame,
That seven proud kings for their suitors came.

King Mador and Rhys came from Powis and Wales,
Unshorn was their hair, and unpruned were their nails;
From Strath-Clywd came Ewain, and Ewain was lame,
And the red-bearded Donald from Galloway came.

Lot, King of Lodon, was hunchback'd from youth,
Dunmail of Cumbria had never a tooth;
But Adolph of Bambrough, Northumberland's heir;
Was gay and was gallant, was young and was fair.

There was strife 'mongst the sisters, for each one would have
For husband King Adolph, the gallant and brave;
And envy bred hate, and hate urged them to blows,
When the firm earth was cleft, and the Arch-fiend arose!

He swore to the maidens their wish to fulfil—
They swore to the foe they would work by his will,
A spindle and distaff to each hath he given,
'Now hearken my spell,' said the Outcast of Heaven.

'Ye shall ply these spindles at midnight hour,
And for every spindle shall rise a tower,
Where the right shall be feeble, the wrong shall have power,
And there shall ye dwell with your paramour.'

Beneath the pale moonlight they sate on the wold,
And the rhymes which they chaunted must never be told;
And as the black wool from the distaff they sped,
With blood from their bosom they moisten'd the thread.

As light danced the spindles beneath the cold gleam,
The castle arose like the birth of a dream—
The seven towers ascended like mist from the ground,
Seven portals defend them, seven ditches surround.