Book  (Jan 2000)  Page(s) 226.  
 
Baronne d'Ales Tree Peony. Gombault [no date given]... pink

Article (magazine)  (Jan 1955)  Page(s) 56.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Chinese, Rose Red, 'Baronne d'Ales', (Gom. bef. 1886), [Gardens] Whitnal Park Botanical gardens,´[Nurseries] Oberlin Peony Gardens

Website/Catalog  (1924)  Page(s) 151.  
 
Pivoines en arbre...Baronne d'Alès.- Très grande fl. pleine, bombée, beau rose vif.

Book  (1907)  Page(s) 20.  
 
95. ALES, BARONNE D'; P. moutan.
(1) 1899, L. Paillet Cat.

Website/Catalog  (1890)  Page(s) 32.  
 
Pæonia Arborea (Tree or Moutan Pæonies).
General Collection.
Baronne d'Alès.

Magazine  (1887)  Page(s) 448.  
 
P. Baron d'Ales was also very fine....