| Sylvia Leonora | |||||
|---|---|---|---|---|---|
 Portrait by Paul Tanqueray, 1930 | |||||
| Ranee of Sarawak | |||||
| Tenure | 24 May 1917 – 1 July 1946 | ||||
| Grand Master of The Most Excellent Order of the Star of Sarawak | |||||
| Tenure | 1 August 1941 – 1 July 1946 | ||||
| Born | 25 February 1885 No. 1, Tilney Street, Park Lane, Central London | ||||
| Died | 11 November 1971 (aged 86) | ||||
| Spouse | Charles Vyner Brooke | ||||
| Issue | Leonora Margaret Brooke Elizabeth Brooke Nancy Valerie Brooke | ||||
| |||||
| House | White Rajahs (by marriage) Brett Family | ||||
| Father | Reginald Brett, 2nd Viscount Esher | ||||
| Mother | Eleanor van de Weyer | ||||
Sylvia Leonora, Lady Brooke, Ranee of Sarawak (born The Hon. Sylvia Leonora Brett, 25 February 1885 – 11 November 1971), was an English aristocrat who became the consort to Sir Charles Vyner de Windt Brooke, the third and last of the White Rajahs of Sarawak.