The 47-year-old Haitian native also faces one count of invitation to sexual touching involving the same girl.
The alleged offences took place in the first six months of 1996 when he was 29.
Court proceedings are set to resume Feb. 23 for Mervil, whose first name is actually Lucknerson.
He has become involved in humanitarian causes in recent years as well as being named "Patriot of the Year" in 2004 by the separatist Societe Saint-Jean-Baptiste.
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