The Lion of St. Mark

The first book in an adventurous trilogy
The House of Ziani and the House of Soranzo had been enemies ever since their grandfathers' joint business venture had collapsed more than forty years before. Then, they had chosen not to resolve their differences in the courts. Instead, they each sought to prevail in their rivalry by investing, trading, and manipulating as each battled to dominate and ultimately ruin the other. The fathers passed this legacy on to their sons....