|IRL:||History's Lord Ruthven|
|Real Name:||Patrick Ruthven|
|Title:|| 3rd Lord Ruthven |
|Affiliations:||Kingdom of Scotland|
|First appearance:||Coup de Grace|
|Portrayed by:||John Ralston|
Lord Ruthven was the Lord Treasurer who wasn't above accepting bribes.
Lord Ruthven, the Lord Treasurer was accepting bribes, and other financial wrongdoing. David Rizzio found some discrepancies in the privy council ledger. He had found proof that in addition to cheating The Crown, Ruthven was also swindling his fellow Nobles.
The next morning, Lord Bothwell and his men took back the castle from Lord Ruthven and his army. For the crimes of high treason and insurrection against the crown, and the murder of David Rizzio, Lord Ruthven was sentenced to death, by Queen Mary. 
|With Friends Like These||A Grain Of Deception||Leaps of Faith||Playing With Fire||Highland Games||Love & Death||Hanging Swords||Unchartered Waters|
|Pulling Strings||A Better Man||Dead of Night||The Shakedown||Coup de Grace||A Bride. A Box. A Body.||Blood in the Water||All It Cost Her|
- Lord Ruthven wrote to William Cecil reminding him of their meetings in England during Edward VI's reign.
- Lord Ruthven reported in June 1563 that he had joined Mary, Queen of Scots's privy council.
- On 2 April 1566, Lord Ruthven sent their testimony on David Rizzio's murder to Queen Elizabeth I, declaring they had acted the best for King Darnley, Mary, Queen of Scots, state and religion.