Question: What is the birthday of the woman Romy Ruyssen fought in the first Invicta Fighting Championships?

Related documents: [0]  [DOC] Romy Ruyssen (born August 24, 1989) is a French mixed martial artist. She has competed professionally since 2007 and headlined the first Invicta Fighting Championships event against Marloes Coenen and holds a submission win over former UFC fighter Sheila Gaff. [END] 
[1]  [DOC] Marloes Coenen (born March 31, 1981) is a retired Dutch mixed martial artist. She has competed professionally since 2000 and is a former Strikeforce Women's Bantamweight Champion. [END]  
Answer: March 31, 1981
March 31, 1981