Rosa 'Baroness Rothchild' is a pink Hybrid Perpetual rose cultivar, bred by Jean Pernet in 1868 and introduced in Australia by St. Kilda Nurseries in 1873 as 'Baroness Rothschild'.

He is best known for developing Hybrid Perpetual and Bourbon rose varieties, including 'Baroness Rothchild' (1868), 'Louis Gimard' (1877), 'Merveille de Lyon (1882), and 'Triomphe des Noisettes' (1887).

His father, Claude Pernet, and son Joseph Pernet-Ducher were also prominent nursery owners and rose breeders in Lyon.

[4] Pernet and his son, Joseph, worked together in the 1880s to develop a bright yellow, repeat flowering Hybrid perpetual.

[5][6] Pernet developed 'Baroness Rothschild' from a seedling of the medium pink Hybrid Perpetual, 'Souvenir de la Reine d'Angleterre' (Cochet, 1855).