The orchid Cattleya Montreux is a hybrid registered with the Royal Horticultural Society by Cholet in 1938.
Top three species ancestors and their influences are

• Cattleya lueddemanniana (50.00%)  subgenus Cattleya  section: Cattleya   series: Lawrenceanae 
• Cattleya gaskelliana (25.00%)  subgenus Cattleya  section: Cattleya 
• Cattleya warscewiczii (25.00%)  subgenus Cattleya  section: Cattleya