Rolf Sievers (b. November 10, 1938)
[From Classic Roses (Revised), by Peter Beales, p. 188:] A number of modern hybrid Albas were raised and released by German breeder Rolf Sievers of Kiel in 1988... They are said to be very hardy...
[From Botanica's Roses, p. 70:] Very little work with the Albas has been done in the twentieth century, save for the German hybridizer Rolf Sievers, creator of the Blush series. They are bred with a mixture of old-fashioned and Kordesii roses.
