Sir Simon was an accountant to the Knights Templar. After stealing the Templar's Treasure, he hid it somewhere in Castle McDuck. As mentioned in "The Secret(s) of Castle McDuck!", only the laird of the castle knows where the treasure is hidden.
Sir Simon died in the early 1500s.
Behind the scenes
- Sir Simon was created by Don Rosa, for his 2004 comic story "A Letter From Home".