Enact a new rule entitled “Income”:

Once per week, a noble may choose to do one, and only one, of the following:

Collect Taxes:
A noble may collect wealth from all of their vassals directly below their title. A Duke may collect a maximum of 5 wealth per Earldom,  an Earl may collect a maximum of 3 wealth from each Barony. When collecting, a noble must collect from all possible vassals. If a Vassal cannot pay the requisite amount, they must borrow money (this does not count as their weekly action).
In order to take this action in a Proper manner, the noble must provide each of their vassals with 1 knight from their supply.

Borrow Money:
A noble may borrow any amount of money, which will be tracked in the GNDT wealth column in the following format: “[wealth Noble has] (B wealth noble owes)]” (e.g. “6 (B 2)”). For every week a noble fails to pay back the full amount of what they owe, an additional 10% (rounded up to the nearest integer) is added to the amount they owe. A noble who owes money may not achieve victory or purchase a title.

Farm Crops:
A noble may roll 2 DICE6. They gain wealth equal to the higher number rolled.

Declare Bankruptcy:
A noble may choose to reset their wealth to 0 (getting rid of all debt). If they do so, they loose one title per 5 wealth they owe, starting from their highest title. They also loose 5 dignity.