Don Carlos

There are two well-known dramatic works by this name:

Don Carlos a play by Friedrich Schiller (1787)

See Don Karlos, Infant von Spanien

Don Carlos an opera by Giuseppo Verdi (1867)

Don Carlos is the original French title of an opera by Giuseppo Verdi ()[], based on Schiller's play Don Karlos, Infant von Spanien. The opera is most often performed in Italian translation, usually under the title Don Carlo. It had its French premiere in 1867 and its Italian premiere in London at Covent Garden in June 1867, only being performed in Italy at the Teatro Pagliano in Florence in April–May 1869.

The opera has often been performed in South Africa.

https://en.wikipedia.org/wiki/Don_Carlos