Book  (2007)  
 
Letizia Bianca, Q. Mansuino 1963
Blooming period: late
Habit: shrub with upright canes
Vigour: moderate
Sprouts: bronze-green
Prickles: present, moderately dense and straight
Flower: in groups (3), in clusters; medium bloom; 22 petals, flat, semi-double, diameter 5,5 cm; depth 1,3 cm; strong fragrance
Petals: elliptical, length 2,6 cm; width 1,7 cm; colour of the upper surface white 155 C, reverse white 155 C, no nails
Stamens: anthers yellow, filaments white
Stygmas: free, yellow
Calyx: cylindrical, smooth
Sepals: reflexed downwards, 1-2 lacinias, both on one side or on both sides, 2 sepals without
Foliage: length 10,5 cm, width 7,5 cm; colour of the upper surface dark green 147 A, reverse light olive green 147 B; glossy; length of terminal leaf 4,3 cm, width 2,3 cm; rounded base; 40 teeth per side

Website/Catalog  (2000)  Page(s) 118.  
 
Mansuinianae. Letizia Bianca, Mansuino Q., 1963

Magazine  (1971)  Page(s) 75.  
 
In acelaşi timp au fost obţinute de către selecţionerul italian Mansuino din Sanremo citeva soiuri noi cu flori media şi mici dintre care amintim: Torino, Generosa, Letizia, Biancaneve, Gardenia, Frine, Zecchino d'oro, Alba di primavera, care ajung să producă 30 — 40 flori pe o singură plantă.

Translation:
At the same time several new varieties with medium and small flowers were obtained by the Italian director of Sanremo, such as: Torino, Generosa, Letizia, Biancaneve, Gardenia, Frine, Zecchino d'oro, Alba di Primavera, which end up producing 30-40 flowers on one plant

Magazine  (1969)  Page(s) 38.  
 
1969 Monza competition for new roses ... In the floribunda section the winner of th best Italian cultivar was a white 'mini-rose' by Mansuino called 'Letizia Bianca' while the Queen Teodolinda crown was awarded ‘Baronne de Rothchild’ by Meilland, France.

Magazine  (1969)  Page(s) 755.  
 
Premiate a Monza le rose più belle …... mentre il concorso “La più bella rosa italiana” è stato vinto dalla varietà “Letizia bianca”, una ennesima bellissima rosa bianca della razza mansuiniana” ottenuta dal rosaista Quinto Mansuino di Poggio di San Remo.