Richard Corliss, American journalist and critic (b. 1944) 2015 – Ray Jackson, Australian activist (b. 1941) 2015 – Pierre Claude Nolin, Canadian lawyer and politician, Speaker of the Canadian Senate (b. 1950) 2015 – Jim Steffen, American football player (b. 1936) 2015 – Francis Tsai, American author and illustrator (b. 1967) 2016 – Inge King, German-born Australian sculptor (b. 1915) 2016 – Banharn Silpa-archa, Thai politician, Prime Minister from 1995 to 1996 (b. 1932) 2019 – Charity Sunshine Tillemann-Dick, American soprano singer and presenter (b. 1983) 2019 – Jean, Grand Duke of Luxembourg (b. 1921) 2021 – Dan Kaminsky, American internet security researcher (b. 1979) 2022 – Orrin Hatch, American politician, President pro tempore of the United States Senate (b. 1934) Holidays and observances Christian feast day: Adalbert of Prague Felix, Fortunatus, and Achilleus George Blessed Giles of Assisi Gerard of Toul Ibar of Beggerin (Meath) Toyohiko Kagawa (Episcopal and Lutheran Church) St George's Day (England) and its related observances: La Diada de Sant Jordi (Catalonia, Spain) April 23 (Eastern Orthodox liturgics) Canada Book Day (Canada) Castile and León Day (Castile and León) Independence Day (Conch Republic, Key West, Florida) International Pixel-Stained Technopeasant Day Khongjom Day (Manipur) National Sovereignty and Children's Day (Turkey and Northern Cyprus) Navy Day (China) World Book Day UN English Language Day (United Nations) UN Spanish Language Day (United Nations) References Bibliography External links BBC: On This Day Historical Events on April 23 Days of the year April