You quickly rouse some soldiers and able-bodied councilmen and ride out of the castle and down to the pier!
Just in time to see Rychtian soldiers disembarking with the heavy chests on their backs.
"I am King Cyrus, and I demand to know what is happening here, and there better be a good explanation!" You yell from horseback. The soldiers stop for a moment before hurriedly, a pair of men disembarks from the largest barge. One of them wears a robe with crest of Rycht, the other with the same crest Prince Vallurvo had on his cloak.
"Greetings! I am Ulko of Rycht. And this here is Rurik of Ingar." Rurik bows to you when he is introduced by his companion.
"Greetings to you, King Cyrus! On behalf of my master and lord, King Astri, I wish to present you these fine gifts." He snaps his fingers at Rychtian soldiers, who put down two boxes, prying them open. They're both full of dyed linens, orange and grey furs, and strings of copper and silver, and even some jewelry.
"For what reason?"
"King Astri heard of Prince Vallurvo's stay in your palace, especially about his drunken insults and his uncouth behavior towards your wife and queen. He wished to make amends for Prince's behavior, but as our nation does not have access to the Great River, we have asked our neighbours the Rychtans, to lend us some of their barges and soldiers to present these riches with utmost apologies to you, your courtiers, and your wife. We have many more boxes full of trinkets and cloth, and I hope that you accept them along with the apology?" You easily notice that some of your courtiers are craning their necks to peek at the boxes, no doubt laden with similar expensive items.
A) "I accept the apology and the fine gifts! Convey my gratitude to good King Astri!"
B) "You think our honor can be bought this cheap? You better double up on the boxes, or else!"
C) "Nay! In fact, I feel more insulted than I was before!!"