If the Rule “Bribery” exists append to that rule the following:

A Noble who wishes to acquire a title that is directly above their title that is already held by another player may do so by paying double the base cost (including double the cost of the money transferred to the vassals).

All costs needed to purchase a title are decreased by [(Noble’s dignity - 50) / 10] rounded to down to the nearest integer. This does not affect the amount of Wealth a Noble must transfer to their Vassals.  (Thus a noble with 60 dignity who is buying an Earldom would only have to pay 7 Wealth) *Note that a Noble who has less than 50 dignity would have to pay more.