| 34831 | March 27 | Birth | 1995 – Taylor Atelian, American actress, singer, and dancer |
| 34832 | March 27 | Birth | 1996 – Rosabell Laurenti Sellers, American-Italian actress |
| 34833 | March 27 | Birth | 1996 – Tereza Medvedová, Slovak cyclist |
| 34834 | March 27 | Birth | 1997 – Princess Aisha bint Al Faisal of Jordan |
| 34835 | March 27 | Birth | 1997 – Princess Sara bint Al Faisal of Jordan |
| 34836 | March 27 | Birth | 1999 – Natasha Calis, Canadian actress |
| 34837 | March 27 | Birth | 2000 – Sophie Nélisse, Canadian actress |
| 34838 | March 27 | Birth | 2004 – Amira Willighagen, Dutch singer |
| 34839 | March 27 | Death | 215 BC – Emperor Kōrei of Japan (b. 342 BC) |
| 34840 | March 27 | Death | 710 – Rupert of Salzburg, Austrian bishop and saint (b. 660) |
| 34841 | March 27 | Death | 853 – Haymo of Halberstadt, German bishop and author (b. 778) |
| 34842 | March 27 | Death | 973 – Hermann Billung, Frankish lieutenant (b. 900) |
| 34843 | March 27 | Death | 1045 – Ali ibn Ahmad al-Jarjara'i, Fatimid vizier |
| 34844 | March 27 | Death | 1221 – Berengaria of Portugal (b. 1194) |
| 34845 | March 27 | Death | 1223 – Raymond-Roger, Count of Foix (b. 1152) |
| 34846 | March 27 | Death | 1237 – John of Brienne (b. 1170) |
| 34847 | March 27 | Death | 1350 – Alfonso XI of Castile (b. 1312) |
| 34848 | March 27 | Death | 1378 – Pope Gregory XI (b. 1336) |
| 34849 | March 27 | Death | 1381 – Juana Manuel, Spanish wife of Henry II of Castile (b. 1339) |
| 34850 | March 27 | Death | 1427 – Rinaldo Brancaccio, Italian cardinal |
| 34851 | March 27 | Death | 1462 – Vasily II of Moscow (b. 1415) |
| 34852 | March 27 | Death | 1472 – Janus Pannonius, Hungarian bishop and poet (b. 1434) |
| 34853 | March 27 | Death | 1482 – Mary of Burgundy (b. 1457) |
| 34854 | March 27 | Death | 1510 – Beatrice de Frangepan (b. 1480) |
| 34855 | March 27 | Death | 1555 – William Hunter, English martyr (b. 1535) |
| 34856 | March 27 | Death | 1564 – Lütfi Pasha, Turkish historian and politician, 37th Grand Vizier of the Ottoman Empire (b. 1488) |
| 34857 | March 27 | Death | 1572 – Girolamo Maggi, Italian scholar, jurist, and poet (b. 1523) |
| 34858 | March 27 | Death | 1598 – Theodor de Bry, Belgian-German engraver, goldsmith, and publisher (b. 1528) |
| 34859 | March 27 | Death | 1613 – Sigismund Báthory, Hungarian husband of Archduchess Maria Christina of Austria (b. 1572) |
| 34860 | March 27 | Death | 1615 – Margaret of Valois (b. 1553) |