📘 The Spanish Tragedy, highly influential and popular in its time, established anew genre in English theatre - the revenge play or revenge tragedy. The plotof ""The Spanish Tragedy"" contains several violent murders and includes as one of its characters a personification of Revenge. This work was often referencedin works written by other Elizabethan playwrights, including WilliamShakespeare, Ben Jonson, and Christopher Marlowe. Many elements of The SpanishTragedy, such as the play-within-a-play appear in Shakespeare's Hamlet. Thomas Kydis also frequently proposed as the author of the lost Ur-Hamlet play that was one of Shakespeare'sprimary sources for Hamlet)