Conrad is an ambitious and arrogant guy, so if things don't go the way he wants, he starts planning dirty tricks to achieve his goals and he doesn't even consider the Pixoy family.
It was for this very reason that he came up with his plan to create a monopoly within the territory of the Duchy of Cannes despite not being his territory. One has to admit that he is an intelligent person, but his arrogance gets the better of him.
If he was able to carry out his plans, without fearing the Pixoy family within the Duchy of Cannes, he also dared to think that he could dominate Andrew and bring him to the point of agreeing to comply with his demands.
The problem was that he didn't know much about Andrew. The only thing he knew was that he had a good relationship with the Pixoy family, but he didn't know the reason for this friendship, especially since he had appeared in the city out of nowhere.