| 41856 | April 11 | Birth | 1998 – Oliver Dillon, English actor |
| 41857 | April 11 | Birth | 2000 – Morgan Lily, American actress |
| 41858 | April 11 | Death | 1034 – Romanos III Argyros, Byzantine emperor (b. 968) |
| 41859 | April 11 | Death | 1165 – Stephen IV of Hungary (b. 1133) |
| 41860 | April 11 | Death | 1240 – Llywelyn the Great, Welsh prince (b. 1172) |
| 41861 | April 11 | Death | 1554 – Thomas Wyatt the Younger, English rebel leader (b. 1521) |
| 41862 | April 11 | Death | 1612 – Emanuel van Meteren, Flemish historian and author (b. 1535) |
| 41863 | April 11 | Death | 1612 – Edward Wightman, English minister and martyr (b. 1566) |
| 41864 | April 11 | Death | 1626 – Marin Getaldić, Croatian mathematician and physicist (b. 1568) |
| 41865 | April 11 | Death | 1712 – Richard Simon, French priest and critic (b. 1638) |
| 41866 | April 11 | Death | 1723 – John Robinson, English bishop and diplomat (b. 1650) |
| 41867 | April 11 | Death | 1783 – Nikita Ivanovich Panin, Polish-Russian politician, Russian Minister of Foreign Affairs (b. 1718) |
| 41868 | April 11 | Death | 1798 – Karl Wilhelm Ramler, German poet and academic (b. 1725) |
| 41869 | April 11 | Death | 1856 – Juan Santamaría, Costa Rican soldier (b. 1831) |
| 41870 | April 11 | Death | 1861 – Francisco González Bocanegra, Mexican poet and composer (b. 1824) |
| 41871 | April 11 | Death | 1873 – Edward Canby, American general (b. 1817) |
| 41872 | April 11 | Death | 1890 – Joseph Merrick, English man with severe deformities (b. 1862) |
| 41873 | April 11 | Death | 1894 – Constantin Lipsius, German architect and theorist (b. 1832) |
| 41874 | April 11 | Death | 1903 – Gemma Galgani, Italian mystic and saint (b. 1878) |
| 41875 | April 11 | Death | 1906 – James Anthony Bailey, American businessman, co-founded Ringling Bros. and Barnum & Bailey Circus (b. 1847) |
| 41876 | April 11 | Death | 1906 – Francis Pharcellus Church, American journalist and publisher, co-founded Armed Forces Journal and The Galaxy Magazine (b. 1839) |
| 41877 | April 11 | Death | 1908 – Henry Bird, English chess player and author (b. 1829) |
| 41878 | April 11 | Death | 1916 – Richard Harding Davis, American journalist and author (b. 1864) |
| 41879 | April 11 | Death | 1926 – Luther Burbank, American botanist and academic (b. 1849) |
| 41880 | April 11 | Death | 1938 – Eddie Morton, American singer (b. 1870) |
| 41851 | April 11 | Birth | 1994 – Lindsey Wixson, American model |
| 41852 | April 11 | Birth | 1995 – Sycerika McMahon, Irish swimmer |
| 41853 | April 11 | Birth | 1996 – Dele Alli, English footballer |
| 41854 | April 11 | Birth | 1997 – Ethan Couch, American criminal |
| 41855 | April 11 | Birth | 1997 – Miriam Kolodziejová, Czech tennis player |