Juan Carrasco was an apologist, of Marrano

Marrano

Marranos were Jews living in the Iberian peninsula who converted to Christianity rather than be expelled but continued to observe rabbinic Judaism in secret...

 parentage. He was born in Madrid

Madrid

Madrid is the capital and largest city of Spain. The population of the city is roughly 3.3 million and the entire population of the Madrid metropolitan area is calculated to be 6.271 million. It is the third largest city in the European Union, after London and Berlin, and its metropolitan...

 and is sometimes called Carrasco of Madrid.

Carrasco had first been an Augustin friar at Burgos

Burgos

Burgos is a city of northern Spain, historic capital of Castile. It is situated at the edge of the central plateau, with about 178,966 inhabitants in the city proper and another 20,000 in its suburbs. It is the capital of the province of Burgos, in the autonomous community of Castile and León...

 and an excellent preacher. Later, on a journey to Rome

Rome

Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

, he became a convert to Judaism

Judaism

Judaism ) is the "religion, philosophy, and way of life" of the Jewish people...

 at Livorno

Livorno

Livorno , traditionally Leghorn , is a port city on the Tyrrhenian Sea on the western edge of Tuscany, Italy. It is the capital of the Province of Livorno, having a population of approximately 160,000 residents in 2009.- History :...

. He was familiar with the writings of Nahmanides

Nahmanides

Nahmanides, also known as Rabbi Moses ben Naḥman Girondi, Bonastruc ça Porta and by his acronym Ramban, , was a leading medieval Jewish scholar, Catalan rabbi, philosopher, physician, kabbalist, and biblical commentator.-Name:"Nahmanides" is a Greek-influenced formation meaning "son of Naḥman"...

, Isaac Abravanel, and others, and while in Holland (probably at Amsterdam

Amsterdam

Amsterdam is the largest city and the capital of the Netherlands. The current position of Amsterdam as capital city of the Kingdom of the Netherlands is governed by the constitution of August 24, 1815 and its successors. Amsterdam has a population of 783,364 within city limits, an urban population...

, where he was circumcised) he wrote in Spanish

Spanish language

Spanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...

 his "Apology of Judaism." This work was published at Nodriza (The Hague

The Hague

The Hague is the capital city of the province of South Holland in the Netherlands. With a population of 500,000 inhabitants , it is the third largest city of the Netherlands, after Amsterdam and Rotterdam...

) in 1633, and was later incorporated in the "Coleccion de Reformadores Españoles," published by Wiffen, who believed Carrasco to have been a Protestant.