Margaret of York that year allowed her to be spared the grief of Philip's untimely death of typhoid fever in 1506. William Caxton, who introduced the new art of printing into the Kingdom of England and was a staunch Yorkist supporter, counted Margaret as one of his patrons. A presentation copy of "Recuyell of the Historyes of Troye", the first book printed in the English language (late 1473 – early 1474), has a specially made engraving showing Caxton presenting the book to Margaret. The volume is now in the Huntington Library, San Marino, California. This "patronage" may be more advertising than analogous to
Horestes of Orestes. Rather than Aeschylus' trilogy of Athenian tragedies "Oresteia" (458 BCE), however, Pickering's source for his version of the story is William Caxton's translation of the French romance "Recuyell of the Historyes of Troye" (translated in 1475). Consequently, the play's theme and dramatic structure are more medieval than classical. Only one copy of the play is extant, which the British Museum holds. It was published by William Griffith of Fleet Street, London for sale at his shop in St. Dunstan's churchyard. Along with Thomas Preston's "Cambises" (c.1561), the play has been identified as a "hybrid morality", due to its