Is this Duchesse de Rohan?
I'm trying to narrow down the possibilities. This is a rose that was sent by mistake but being a band, it took a while to see what it was. It grows very fast although not too tall and spreads by growing thin canes and getting wider every year. It flowers in spring with my Bourbons. The flowers are about the same size or larger than a large Reine Victoria and not as large as Madame Issac P. or La Reine.