The orchid Paphiopedilum Andronicus is a hybrid registered with the Royal Horticultural Society by Sanders[St Albans] in 1908.
Top three species ancestors and their influences are

• Paphiopedilum rothschildianum (50.00%)  subgenus Polyantha  section: Mastigopetalum 
• Paphiopedilum victoria-regina (50.00%)  subgenus Cochlopetalum