Which Poet Laureate wrote crime novels using the pseudonym Nicholas Blake?

Cecil Day-Lewis (27 April 1904 – 22 May 1972), often writing as C. Day-Lewis, was an Anglo-Irish poet and the Poet Laureate of the United Kingdom from 1968 until his death in 1972. He also wrote mystery stories under the pseudonym of Nicholas Blake. He is the father of actor Daniel Day-Lewis and documentary filmmaker and television chef Tamasin Day-Lewis.

In 1946, Day-Lewis was a lecturer at Cambridge University, publishing his lectures in The Poetic Image (1947). Day-Lewis was made a Commander of the Most Excellent Order of the British Empire by Elizabeth II in her 1950 Birthday Honours. He later taught poetry at Oxford, where he was Professor of Poetry from 1951 to 1956. During 1962–1963, he was the Norton Professor at Harvard University.