| 41941 | April 11 | Death | 2012 – Agustin Roman, American bishop (b. 1928) |
| 41942 | April 11 | Death | 2013 – Don Blackman, American singer-songwriter, pianist, and producer (Twennynine) (b. 1953) |
| 41943 | April 11 | Death | 2013 – Grady Hatton, American baseball player, coach, and manager (b. 1922) |
| 41944 | April 11 | Death | 2013 – Thomas Hemsley, English actor and singer (b. 1927) |
| 41945 | April 11 | Death | 2013 – Hilary Koprowski, Polish-American virologist and immunologist (b. 1916) |
| 41946 | April 11 | Death | 2013 – Gilles Marchal, French singer-songwriter (b. 1944) |
| 41947 | April 11 | Death | 2013 – Maria Tallchief, American ballerina (b. 1925) |
| 41948 | April 11 | Death | 2013 – Clorindo Testa, Italian-Argentinian architect, designed the National Library of the Argentine Republic and Marriott Plaza Hotel (b. 1923) |
| 41949 | April 11 | Death | 2013 – Jonathan Winters, American comedian, actor and screenwriter (b. 1925) |
| 41950 | April 11 | Death | 2014 – Alfredo Alcón, Argentinian actor (b. 1930) |
| 41951 | April 11 | Death | 2014 – Nandu Bhende, Indian singer and actor (b. 1955) |
| 41952 | April 11 | Death | 2014 – Rolf Brem, Swiss sculptor and illustrator (b. 1926) |
| 41953 | April 11 | Death | 2014 – Edna Doré, English actress (b. 1921) |
| 41954 | April 11 | Death | 2014 – Bill Henry, American baseball player (b. 1927) |
| 41955 | April 11 | Death | 2014 – Lou Hudson, American basketball player and sportscaster (b. 1944) |
| 41956 | April 11 | Death | 2014 – Myer S. Kripke, American rabbi and scholar (b. 1914) |
| 41957 | April 11 | Death | 2014 – Sergey Nepobedimy, Russian engineer (b. 1921) |
| 41958 | April 11 | Death | 2014 – Jesse Winchester, American singer-songwriter, guitarist, and producer (b. 1944) |
| 41959 | April 11 | Death | 2015 – Jimmy Gunn, American football player (b. 1948) |
| 41960 | April 11 | Death | 2015 – Muhammad Kamaruzzaman, Bangladeshi journalist and politician (b. 1952) |
| 41961 | April 11 | Death | 2015 – François Maspero, French journalist and author (b. 1932) |
| 41962 | April 11 | Death | 2015 – Hanut Singh Rathore, Indian general (b. 1933) |
| 41963 | April 11 | Death | 2015 – Tekena Tamuno, Nigerian historian and academic (b. 1932) |
| 41964 | April 11 | Holiday and observance | Christian feast day:Antipas of Pergamum (Greek Orthodox Church)Gemma GalganiGodebertaGuthlac of CrowlandGeorge Selwyn (Anglicanism)Stanislaus of SzczepanówApril 11 (Eastern Orthodox liturgics) |
| 41965 | April 11 | Holiday and observance | Juan Santamaría Day, anniversary of his death in the Second Battle of Rivas. (Costa Rica) |
| 41966 | April 12 | Event | 238 – Gordian II loses the Battle of Carthage against the Numidian forces loyal to Maximinus Thrax and is killed. Gordian I, his father, commits suicide. |
| 41967 | April 12 | Event | 240 – Shapur I is crowned as king of the Sasanian Empire. |
| 41968 | April 12 | Event | 467 – Anthemius is elevated to Emperor of the Western Roman Empire. |
| 41969 | April 12 | Event | 627 – King Edwin of Northumbria is converted to Christianity by Paulinus, bishop of York. |
| 41970 | April 12 | Event | 1204 – The Crusaders of the Fourth Crusade breach the walls of Constantinople and enter the city, which they completely occupy the following day. |