Originally, Clayton was set to marry Lyanna Stark of House Stark, of course that whole plan went to shit when Rhaegar Targaryen kidnapped the girl and started Robert's Rebellion.

Which lead to Clayton being married to the eldest daughter of House Targaryen, she was one of the last living Targaryens out of three, the other two were off in Essos. Clayton was constantly butting heads with Robert Baratheon over the means of his wife's loyalty.

Clayton doubted his wife was planning anything.... unsavory, no, she seemed quite content in being his wife and raising that bastard of hers, Jon Snow. Did Clayton mention his wife had a bastard? Well, she did, the boy was concieved when she was held hostage in Winterfell during the war.

Clayton hated the boy, he knew he ought nought to. Jon was just a child, an innocent. But every bloody time Clayton looked at the boy, all he could think about was how a Northmen sullied his silver-haired wife, how the unknown mans hands touched her before Clayton could even think of touching her shoulder!

It was infuriating for Clayton, to watch as you play in the courtyard of Riverun, laughing and giggling with your boy, when that could be his boy, a trueblooded boy, of House Tully. He should of given you your firstborn, a good honourable boy, it was his duty as your husband. And yet, you had that. for a son.

A bastard was shameful, Clayton told himself.