The fifth Duke of Braganza (Teodósio I, b. 1510) is especially important to historians of international trade as when he died in 1563, the contents of the family's main palace in Vila Vicosa, were inventoried in their entirety. Because Portugal had established a global trade network for sixty-odd years by the time of the Duke's death, and was "in the process of establishing their military, religious and commercial presence, sailors, merchants, priests and crown officials had developed sophisticated, transcontinental trading practices that involved all sorts of global commodities, the inventory is a priceless resource to art historians as it lists artefacts originating in Mozambique, the western coast of India, Malacca, China, Japan, Morocco, and Brazil. Slaves were also included in the inventory; one of the duke's slaves, a gifted artist, ranking amongst the "top 100 most expensive items in the whole inventory".