Royal Names－Adelaide

'Adelaide', meaning 'Noble nature', is the Old High German Adalheidisis, and a derivation of the Germanic name 'Adelheid' in modern times. It was popularised by Adelaide of Saxe-Meiningen, Queen consort to William IV of the United Kingdom. Many British Royals and the descendants had it as their first or middle names.⁣⁣

(Queen Adelaide of the United Kingdom

by Sir William Beechey, c. 1831       Source : Wikipedia)

Here are some royals in history with this name, sorted by their nationality by birth : 

British Royals

Princess Elizabeth of Clarence (1820-1821)

[Elizabeth Georgiana Adelaide]

Augusta, Grand Duchess of Mecklenburg-Strelitz (1822-1916)

[Augusta Caroline Charlotte Elizabeth Mary Sophia Louise]

Mary Adelaide, Duchess of Teck (1833-1897)
[Mary Adelaide Wilhelmina Elizabeth]

Victoria, German Empress (1840-1901)

[Victoria Adelaide Mary Louisa]

Danish Royals

Caroline-Mathilde, Hereditary Princess of Denmark (1912-1995)

[Caroline-Mathilde Louise Dagmar Christine Maud Augusta Ingeborg Thyra Adelheid]

German Royals

Adelaide, Queen of the United Kingdom (1792-1849)

[Adelheid Amalie Luise Therese Caroline]

Adelheid, Duchess of Schleswig-Holstein (1835-1900)
[Adelheid Victoria Amalie Louise Maria Konstanze]

Feodora, Duchess of Saxe-Meiningen (1839-1872)
[Feodora Victoria Adelheid]

Louise Sophie, Princess Friedrich Leopold of Prussia (1866-1952)

[Feodora Luise Sophie Adelaide Henrietta Amelia]

Victoria Adelaide, Duchess of Saxe-Coburg and Gotha (1885-1970)

[Viktoria Adelheid Helene Luise Marie Friederike]

Helena Adelaide, Princess Harald of Denmark (1888-1962)

[Helene Adelheid Viktoria Marie]

Adelaide, Princess of Solms-Baruth (1889-1964)

[Adelheid Luise]

Feodora, Grand Duchess of Saxe-Weimar-Eisenach (1890-1972)

[Feodora Karola Charlotte Marie Adelheid Auguste Mathilde]

Victoria Louise, Duchess of Brunswick (1892-1980)

[Viktoria Luise Adelheid Mathilde Charlotte]

Karoline Mathilde, Countess Hans of Solms-Baruth (1894-1972)

[Viktoria-Irene Adelheid Auguste Alberta Feodora Karoline Mathilde]

Barbara, Duchess Christian Louis of Mecklenburg-Schwerin (1920-1994)

[Barbara Irene Adelaide Victoria Elizabeth Bathildis]

Hanoverian Royals

Princess Olga of Hanover (1884-1958)

[Olga Adelaide Louise Marie Alexandrina Agnes]

Italian Royals

Maria Gabriella, Princess of Savoy (1940-)
[Maria Gabriella Giuseppa Aldegonda Adelaide Ludovica Felicità Gennara]

Portuguese Royals

Maria das Neves, Duchess of San Jaime, (1852-1941) 
[Maria das Neves Isabel Eulália Carlota Adelaide Micaela Gabriela Rafaela Gonzaga de Paula de Assis Inês Sofia Romana]

Infanta Maria Theresa of Portugal (1855-1944)
[Maria Teresa da Imaculada Conceição Fernanda Eulália Leopoldina Adelaide Isabel Carolina Micaela Rafaela Gabriela Francisca de Assis de Paula Gonzaga Inês Sofia Bartolomeu dos Anjos]

Maria Josepha, Duchess in Bavaria (1857-1943)
[Maria José Joana Eulália Leopoldina Adelaide Isabel Carolina Micaela Rafaela Gabriela Francisca de Assis e de Paula Inês Sofia Joaquina Teresa Benedita Bernardina]

Infanta Adelgundes, Duchess of Guimarães (1858-1946)
[Adelgundes de Jesus Maria Francisca de Assis e de Paula Adelaide Eulália Leopoldina Carlota Micaela Rafaela Gabriela Gonzaga Inês Isabel Avelina Ana Estanislau Sofia Bernardina]

Maria Antonia, Duchess of Parma (1862-1959), mother of Empress Zita of Austria
[Maria Antónia Adelaide Camila Carolina Eulália Leopoldina Sofia Inês Francisca de Assis e de Paula Micaela Rafaela Gabriela Gonzaga Gregória Bernardina Benedita Andrea]