Requiem of the Rose King is a Japanese manga series written and illustrated by Aya Kanno. Loosely based on the Shakespearean plays Henry VI, Part 3 and Richard III, the series follows an intersex version of Richard III during the tumultuous Wars of the Roses (1455, 1487) period in English history. The manga was serialized in Akita Shoten's Monthly Princess magazine from October 2013 to January 2022, with its chapters collected into 17 bound volumes as of December 2021. It is licensed in English by Viz Media. It has inspired three drama CDs, two spin-off manga series, an original novel, a stage play, and an anime television series adaptation produced by J.C.Staff, which aired from January to June 2022.