If Brent Dickerson's Old Rose Advisor vol 1 is correct, the parent of this should be listed as Mme Eugene Verdier the tea (from 1882), rather than the hybrid perpetual of the same name from 1875. The yellow/salmon base in the colour of the Princesse seems to confirm this is correct (ME Verdier the tea is yellow, unlike its hybrid perpetual namesake, which is simply pink, like the Princesse's other parent).