Sempervirens Hybrids
[From Botanica's Roses, p. 66:] Sempervirens Roses are a result of the work of Monsieur Jacques, gardener to the Duc d'Orleans at the Chateau de Neuilly; the duke later became King Louis Philippe, after whom several roses were named. Rosa sempervirens blood gives them a strong constitution.
[From Shrub Roses and Climbing Roses, by David Austin, p. 100:] Early in the nineteenth century the French breeder Jacques, gardener to the Duke d'Orleans (later King Louis-Philippe), used R. sempervirens to create the small but very beautiful group which we call Sempervirens Hybrids. They were almost exclusively the result of his work, and since his time little has been done with them.