El Greco El Greco officially complained about this event. A few months later, on 18 September 1572, he paid his dues to the Guild of Saint Luke in Rome as a miniature painter. At the end of that year, El Greco opened his own workshop and hired as assistants the painters Lattanzio Bonastri de Lucignano and Francisco Preboste. In 1577, El Greco migrated to Madrid, then to Toledo, where he produced his mature works. At the time, Toledo was the religious capital of Spain and a populous city with "an illustrious past, a prosperous present and an uncertain future". In Rome, El
El Greco and Paul Lefort helped to promote a widespread revival of interest in his painting. In the 1890s, Spanish painters living in Paris adopted him as their guide and mentor. However, in the popular English-speaking imagination he remained the man who "painted horrors in the Escorial" in the words of Ephraim Chambers' "Cyclopaedia" in 1899. In 1908, Spanish art historian Manuel Bartolomé Cossío published the first comprehensive catalogue of El Greco's works; in this book El Greco was presented as the founder of the Spanish School. The same year Julius Meier-Graefe, a scholar of French Impressionism, traveled in Spain, expecting to