Possible Clues:

• “The Fifer” artist
• French impressionist Édouard
• ''The Spanish Singer'' painter
• 'Le Déjeuner sur l'herbe' artist
• 'The Absinthe Drinker' painter
• "The Balcony" painter
• "Le Dejeuner sur l'Herbe" painter
• French artist who painted 'The Absinthe Drinker'
• Exhibitor at 1863's Salon des Refusés
• Impressionist who painted people on lawns, in cafés, brutally murdering each other, etc