About Diego de Sanabria
He was raised by his step mother Doña Mencia Calderon.
In March 1549, having died his father Juan de Sanabria, and after the legal impossibility to transfer the title of Adelantado del Rio de la Plata to Doña Mencia, he became IV Adelantado del Rio de la Plata at the tender age of 16 or 17. That young age made it difficult for him to hire soldiers for his intended expedition.
He managed to