'Brion' was described as a seedling of 'Peace' in a Twomey article I read many, many years ago. I believe via the ARS. I'm wondering if the single photo available is a mis-label of 'Berlin'. I don't know, but I know it's not a simple rose. In the same article, it was referenced that 'Lloyd Center Supreme' and 'Colorburst' was sisters derived from 'Brion' and 'Silver Jubilee'.

I wish I could find that article. It was from a 1990s ARS, if I recall correctly.