Fictional Characters from Television: 2 characters
Addie Horton (a.k.a. Adelaide)   1965   Days of Our Lives  
Adelaide Langdon   2011   American Horror Story  
Olympic Medalists: 1 gold
(gold) Adelaide Lambert   1928   swimming - 4x100 m freestyle relay  
Other Royalty: 1 grand duke
Marie-Adélaïde, Grand Duchess of Luxembourg   1912-1919   Luxembourg  
Saints: 3 saints
Saint Adelaide of Italy   931-999  
Saint Adelaide   960-1015  
Saint Aleydis of Schaerbeek (a.k.a. Adelaide)   1204-1250  
Title Characters: 1 song
(song) Adelaide   2007   Adelaide