You reply to the governor that he should go on with investigations, hunting parties and so on to determine and curb down any potential orcish trouble that might appear.
878 AD, Autumn
The capital of Koi held well but the angry and starving population and even the garrison tossed the Duke over the walls and surrendered to Beren, who is now King of (Second) Kiwi Kingdom.
The Army returns to Luathbas and the commander brings a letter from Beren to you.
"King Feodh of Luathbas
I shall forever praise you for helping me regain the throne. I had to lie and make up stories about being a bard, but that was the idea of Stjolf, a loyal man to the Kiwi royal family. My father was Calgon, one of the last Kiwi pretendents to the throne and by coincidence, the a young half-brother of your father's first wife, Serinda.
With this letter also comes a copy of the vassalship act that I personally written and signed for you, as I declare myself the subject to the Crown of Luathbas. To further close the ties between our two lands, I ask for the hand of young and fair Sela, your niece and daughter of your late brother Llewyn.
However I must also again ask you for assistance; I want to revive the Kiwi Kingdom back to its glory, and I have several angry types of nomadic riders all around my borders. I ask you that you deploy the mighty and elite Luathbas Army to the my kingdom so that it protects its borders while I stabilize my lands and raise my own army.
Your vassal
King Beren of Kiwi"
You rub your nose while thinking for a while.
"How old is Beren, exactly?" The advisor looks at you, rubs his chin thoughtfully, crosses his arms, paces about contemplatively for a while, and finally lets out a hum.
"I do not know, my liege. Twenty-something? Near thirty?"
"And Sela is...?"
"Your eldest niece shall be fourteen in about thirteen weeks, if my memory works correctly." You consider your options for a moment.
As for the marriage proposal...
A) Refuse the marriage, making an excuse about it being inappropriate for such a mature man like King Beren to marry someone as young as Sela.
B) Refuse to give away your niece, but leave the marriage proposal open to debate.
C) Accept it.
As for protection of Kiwi's borders...
A) Send the Army to 'garrison' Kingdom of Kiwi, because a senior that does not protect his vassal is no senior at all!
B) Reply that your Army did its thing already and you have to protect your own Kingdom too; others have to wait.
//No split votes, etc.