Diego de Covarrubias y Leyva
Diego de Covarrubias y Leyva (1512–1577) was a jurist and prelate of the School of Salamanca, born in Toledo. He studied under Azpilcueta, Vitoria and Soto, and at twenty-one held a canon-law chair at Salamanca, where he was hailed as the Bartolus of Spain.
As bishop of Ciudad Rodrigo from 1560, he attended the Council of Trent and drafted its decrees on reform. He became bishop of Segovia in 1564 and president of the Council of Castile in 1572, and died in Madrid in 1577 shortly after nomination as bishop of Cuenca.