<sod>'''Bartolomé de Medina''' (born around 1504 in [[Seville]]) was a merchant in Seville until he was about fifty.  He then moved to [[New Spain]] leaving behind his wife Leonor de Morales and his five children. There he invented the [[patio process]], for which [[Viceroy]] [[Don (honorific)|Don]] [[Luis de Velasco]] awarded him a six-year [[patent]].<ref>Alan Probert, "Bartolomé de Medina: The Patio Process and the Sixteenth Century Silver Crisis" in Bakewell, Peter, ed. ''Mines of Silver and Gold in the Americas''. Variorum: Brookfield, 1997, pp. 90-127, ISBN 0860785130.</ref> <eod>
<sod>'''Bartolomé de Medina''' (born around 1504 in [[Seville]]) was a merchant in Seville until he was about fifty.  He learned the economics of [[litharge]] smelting before moving to [[New Spain]], leaving behind his wife Leonor de Morales and his five children. There he invented the [[patio process]], for which [[Viceroy]] [[Don (honorific)|Don]] [[Luis de Velasco]] awarded him a six-year [[patent]].<ref>Alan Probert, "Bartolomé de Medina: The Patio Process and the Sixteenth Century Silver Crisis" in Bakewell, Peter, ed. ''Mines of Silver and Gold in the Americas''. Variorum: Brookfield, 1997, pp. 90-127, ISBN 0860785130.</ref> <eod>