Well, things are heating up on the CW’s “Reign” now that Catherine de’ Medici, the mother-in-law from hell, is back in her son Francis II’s somewhat good graces. Meanwhile, the plot thickens across the Channel as Elizabeth I entertains Don Carlo, heir to Philip II of Spain, as a possible husband – throwing the tortured triangle of herself, her soul mate Robert Dudley and Dudley’s scheming wife Amy into sharp relief along with Elizabeth’s ambivalence toward marriage. Good stuff.

In reality, Don Carlo – the subject of an equally fanciful opera by Verdi, “Don Carlos” – was not the dashing, romantic figure of Verdi or the TV series but a deranged hunchback who may have been killed by his own father, who was in tur once Elizabeth’s brother-in-law, the husband of her sister and predecessor “Bloody Mary” Tudor. And to make things even cozier, Philip ended up marrying Elizabeth Valois, daughter of Catherine de’ Medici and BFF of her sister-in-law, and Francis’ wife, Mary, Queen of Scots. ...