30 years ago we purchased a rose from Blossoms and Bloomers that was called 'The Bishop'.  However, I'm not sure of the name .  My Bishop  is a very heavy bloomer.  You can't see the foliage or canes due to the enormous amounts of blooms that   cover the shrub in the spring.  The primary canes are about 8 foot long with laterals of about 5 foot long.  The canes are upright and slender with few thorns and small foliage.  The blooms are cupped, having many petals the color of rose-crimson to purple showing on "occasion" a blue-violet tone that fades away to gray when we have an unusually warm/hot spring.  Bloom size can range from 2.5 inches to 3 inches.  This rose is not very susceptible to Blackspot.  The rose is also very drought tolerant.  Please note: This rose has never been watered in my garden.  It grows in a shady area getting about 4 hours of sun.  I'm not to sure of the name, the bush appears to be much larger then described in the various catalogs; if anyone has any suggestions at all, those suggestions would be appreciated.  I can't provide a photo at this time.  But it appears to look like or is very similar to the  portrait of 'The Bishop' in Redoute. Once again, any help in identifying this rose would be appreciated.