The Spring of the Ram. Book Two of the House of Niccolo

With the bravura storytelling and pungent authenticity of detail she brought to her acclaimed Lymond Chronicles, Dorothy Dunnett, grande dame of the historical novel, presents The House of Niccolò series. The time is the 15th century, when intrepid merchants became the new knighthood of Europe. Among them, none is bolder or more cunning than Nicholas vander Poele of Bruges, the good-natured dyer's apprentice who schemes and swashbuckles his way to the helm of a mercantile empire.
In 1461, Nicholas is in Florence. Backed by none other than Cosimo de' Medici, he will sail the Black Sea to Trebizond, last outpost of Byzantium, and the last jewel missing from the crown of the Ottoman Empire. But trouble lies ahead. Nicholas's stepdaughter--at the tender age of thirteen--has eloped with his rival in trade: a Machiavellian Genoese who races ahead of Nicholas, sowing disaster at every port.
And time is of the essence: Trebizond may fall to the Turks at any moment. Crackling with wit, breathtakingly paced, The Spring of the Ram is a pyrotechnic blend of scholarship and narrative shimmering with the scents, sounds, colors, and combustible emotions of the 15th century.