Book  (Apr 1999)  Page(s) 443.  
 
Prince Englebert Ch. d'Arenberg Hybrid Tea. Soupert & Notting, 1909. Parentage: 'Étoile de France' (Hybrid Tea) x 'Richmond' (Hybrid Tea). The author cites information from different sources... scarlet shaded purple...

Book  (Apr 1993)  Page(s) 471.  
 
Prince Engelbert Charles d'Arenberg Hybrid Tea, flowers scarlet, double, 1909, 'Richmond' x 'Étoile de France'; Soupert & Notting...

Book  (1936)  Page(s) 33.  
 
d'Arenberg, Prince Engelbert Charles (HT) Soup. and Nott. 1909; Etoile de France X Richmond; bright scarlet-red, shaded darker, large, double, fine form, high-centered, solitary, lasting, floriferous, fragrance 5/10, growth 7/10, upright, bushy, 80 cm. Sangerhausen

Website/Catalog  (1929)  Page(s) 29.  
 
Everblooming Roses
The so-called Everblooming Roses include the Hybrid Tea and Pernetiana groups. They do not bloom all the time, but if kept healthy and growing steadily, one crop of flowers succeeds another at brief intervals.
Prince Engelbert Charles d'Arenberg. Hybrid Tea. (Soupert & Notting, 1909.) Pointed buds and bright scarlet blooms of good form and size; fragrant. Moderate growth and fair blooming qualities.
A well-known bedding Rose, valuable because its foliage is resistant to disease. The blooms are attractive but not lavishly produced.

Website/Catalog  (1928)  Page(s) 21.  
 
Hybrid Teas, Teas  and Pernetiana.
Prince Englebert Charles d'Arenberg. Hybrid Tea. (Soupert & Notting, 1909.) Etoile de France X Richmond. Brilliant scarlet with darker shadings; large, full. Free and upright.

Website/Catalog  (1923)  Page(s) 40.  
 
Hybrid Tea Roses .... Prince Engelbert Charles d'Arenberg (Soupert & Notting, 1909). Large and double, brilliant scarlet with purple shading. Fragrant.

Magazine  (7 Mar 1918)  Page(s) vol 41, no. 1058, p. 112.  
 
Tea & Hybrid Tea Roses
2700 Prince d'Arenberg, bright scarlet.
(ad) A. N. Pierson, Inc., Cromwell, Conn.

Book  (1917)  Page(s) 110.  
 
Then there is Prince d'Arenberg, the easiest to grow and the hardest to sell; 

Magazine  (1916)  Page(s) 116.  
 
Prince d'Arenberg is popular with some growers, and with others is practically useless.

Magazine  (25 Dec 1915)  Page(s) 1219.  
 
I recently received a letter from a grower, stating that the red rose, Francis Scott Key, paid better than any rose he was growing. The year round again, it is Prince d'Arenberg, and so on along the line. Try them out, give them all a place, and try to do them justice. If it doesn’t do well with your neighbor, it may do with you and “vice versa.”