''[11:50:48] Trader_Megan sells some items to an envoy from the ruler.''
Traders ratio's also reset each 5 weeks, the exact amount of every 28 days are random. The period can extend by a couple hours probably due to server downtimes.
The main source of the kings funds is [[settlement]] upkeep. The king will not grant funds to traders holding 50 silver or more.