Among the earliest Elizabethan plays are Gorboduc (1561) by Sackville and Norton, and Thomas Kyd's The Spanish Tragedy (1592). Gorboduc is notable especially as the first verse drama in English to employ blank verse, and to the way it designed aspects, from the earlier morality plays and Senecan tragedy, https://www.cognitiveinstituteofdallas.org/advices.html