Robert the nephew of the king of Scotland?
In 'Rutterkin', his uncle (Ian Ogilvy) tells king John that he has two brothers- one being the earl of Huntingdon (Robert/Robin's father) and the other being ''the king of Scotland''?
Surely with him then being a direct relative of an enemy monarch, he as a part-Scotsman, wouldn't be trusted by king John?
And why is this high noble kinsman never mentioned elsewhere?