At one time,Prince Charles and Jimmy Savile worked closely together.
In fact,Charles invited Jimmy Savile to be a royal party organiser and asked him to invite guests to Kensington Palace on his behalf.
There was nothing unusual about this.When a Royal is patron of an event,prominent people within the relevant industry are called in to help organise a reception.
As for Charles having a tattoo of Jimmy Savile,I would think not.On 10 December 2007,I was in Southampton with Prince Charles and I didn't see such a tattoo,but I will add,he was wearing a suit,so maybe it was hidden?
I think we can safely presume Charles doesn't have a tattoo.