The Cassalanters

Victoro and Ammalia rely on their noble status to protect them, and the last thing they want is the City Watch on their doorstep. As the only half-orc noble family in the Lord's Alliance, they are in a rather precarious position, though the rich history of house Cassalanter helps tremendously.

History
The Cassalanters are one of the richest families in Waterdeep, having made their fortune in banking, money-lending and rumor-mongering for the highest payer. Victoro's father, Caladorn Cassalanter, was once Open Lord of Waterdeep, which gave him significant political power, enough that even when Victoro's existence was announced, much of the worst of the Waterdhavian society's responses were silenced.

Osvaldo's Betrothal
Having a longstanding relationship with the Belabrantas, they hope the union between Osvaldo and Avanna can give them a firmer foothold in Waterdhavian society. The agreement was made by Victoro and Palinor Belabranta long before the births of either of the betrothed. Avanna's adoption and Kalashtar nature didn't exactly make for a politically useful match, but since the only other viable member of house Belabranta was Savra Belabranta, who had joined the Cult of the Howling Hatred, they made no attempt to renegotiate the betrothal.