The orchid Cattleya Clothilde is a hybrid registered with the Royal Horticultural Society by Sanders[St Albans] in 1946.
Top three species ancestors and their influences are

• Cattleya velutina (50.00%)  subgenus Intermediae
• Cattleya dowiana (43.75%)  subgenus Cattleya  section: Cattleya 
• Cattleya tenebrosa (6.25%)  subgenus Crispae  section: Crispae   series: Cattleyodes