| 91771 | August 13 | Birth | 1993 – Dominika Stará, Slovak singer |
| 91772 | August 13 | Birth | 1994 – Filip Forsberg, Swedish ice hockey player |
| 91773 | August 13 | Birth | 1996 – Antonia Lottner, German tennis player |
| 91774 | August 13 | Birth | 1998 – Dalma Gálfi, Hungarian tennis player |
| 91775 | August 13 | Birth | 2000 – Piper Reese, American blogger and actress |
| 91776 | August 13 | Death | 586 – Radegund, Frankish princess and saint (b. 520) |
| 91777 | August 13 | Death | 604 – Emperor Wen of Sui (b. 541) |
| 91778 | August 13 | Death | 612 – Fabia Eudokia, Byzantine empress (b. 580) |
| 91779 | August 13 | Death | 900 – Zwentibold, French son of Arnulf of Carinthia (b. 870) |
| 91780 | August 13 | Death | 1134 – Irene of Hungary (b. 1088) |
| 91781 | August 13 | Death | 1297 – Nawrūz, Mongol emir |
| 91782 | August 13 | Death | 1382 – Eleanor of Aragon, Queen of Castile (b. 1358) |
| 91783 | August 13 | Death | 1523 – Gerard David, Flemish painter (b. 1460) |
| 91784 | August 13 | Death | 1617 – Johann Jakob Grynaeus, Swiss clergyman and theologian (b. 1540) |
| 91785 | August 13 | Death | 1667 – Jeremy Taylor, Irish bishop and saint (b. 1613) |
| 91786 | August 13 | Death | 1686 – Louis Maimbourg, French priest and historian (b. 1610) |
| 91787 | August 13 | Death | 1721 – Jacques Lelong, French priest and author (b. 1665) |
| 91788 | August 13 | Death | 1744 – John Cruger, Danish-American businessman and politician, 39th Mayor of New York City (b. 1678) |
| 91789 | August 13 | Death | 1749 – Johann Elias Schlegel, German poet and critic (b. 1719) |
| 91790 | August 13 | Death | 1766 – Margaret Fownes-Luttrell, English painter (b. 1726) |
| 91791 | August 13 | Death | 1826 – René Laennec, French physician, invented the stethoscope (b. 1781) |
| 91792 | August 13 | Death | 1863 – Eugène Delacroix, French painter and lithographer (b. 1798) |
| 91793 | August 13 | Death | 1865 – Ignaz Semmelweis, Hungarian physician and obstetrician (b. 1818) |
| 91794 | August 13 | Death | 1910 – Florence Nightingale, Italian-English nurse and theologian (b. 1820) |
| 91795 | August 13 | Death | 1912 – Jules Massenet, French composer (b. 1842) |
| 91796 | August 13 | Death | 1917 – Eduard Buchner, German chemist and zymologist, Nobel Prize laureate (b. 1860) |
| 91797 | August 13 | Death | 1934 – Mary Hunter Austin, American author and playwright (b. 1868) |
| 91798 | August 13 | Death | 1946 – H. G. Wells, English journalist and author (b. 1866) |
| 91799 | August 13 | Death | 1948 – Elaine Hammerstein, American actress (b. 1897) |
| 91800 | August 13 | Death | 1954 – Demetrius Constantine Dounis, Greek violinist and mandolin player (b. 1886) |