Táin Bó Cúailnge
In part of Ireland called Connacht, Queen Medb and King Ailil joke about which one of them is richer.  They look at all their wealth to compare it, from the most valuable gold to the commonest cloth. They find they have almost exactly the same amount.  Except King Ailil has one very good bull called Finnbeach ("White-horned").  Queen Medb is sad and disappointed.  Then she hears there is a bull as good as Finnbeach nearby in Cúailnge, called Donn Cualnge ("Brown bull of Culange").  She sends her messenger Mac Roth, to the bull's owner and asks to rent it for a year.  The owner agrees.  But later that night, Medb's men boast that, if the owner had said no, Medb would have sent her army to take the bull by force.  This makes the owner angry, and he sends the messenegers away without the bull.