Bonsoir Jeronimo,
Je pense qu'il peut s'agir de Michel IV.
Class C Follis
Attributed to Michael IV Obv: EMMANOVHA - Facing bust of Jesus
Christ, holding nimbus cross and gospel Rev: IC-XC/ NI-KA - Short
cross divides inscription into four equal parts Byzantine Empire
AD 1034-1041 = SEAR Byzantine Coinage and Values (1987), #1825,
page 377