[urbanspaceman]

It was battering my brain working out why, and who, and where, so I want to present some facts regarding the provenance of these two identical caskets.
Obviously made some considerable time after the Germans brought those blades into Shotley Bridge in 1687 as they have estimated the date as: circa.1680.
My casket was made for Thomas Wentworth, 1st Marquess of Rockingham (b.1693) South Yorkshire, who's father had apparently inherited the sword (s) from his uncle, 2nd Earl of Stafford, who had been a close friend and supporter of King James II.
The only conclusion I can achieve is that both swords eventually belonged to the above Thomas Wentworth and/or his family.
It remains puzzling why one sword and casket should end up back in Shotley Bridge, and the other remain in the Wentworth-Woodhouse mansion until the mid.1960s when the sword was given to the Royal Armouries in nearby Leeds and the casket sold in an estate sale but remaining locally until I bought it recently.
The reason I have devoted this effort in sourcing the history is because it indicates distinctly how so much reverence was attached to these swords that expensive caskets were commissioned many years later to put them on display in the mansion house.
Of course, the swords may have remained in hiding long after the above and until any suspicion of Jacobite affiliations in the family had long been forgotten!