Possible Clues:

• Port in northern France
• Birthplace of René Coty
• Port getting Ravel drunk when he composed inside
• Having had interruptions from Henry and Rex, leave port
• Port wine's last to partake of, about right by lake
• Composer touring very European port
• Port the French own? That's about right!
• Port the French keep right inside
• In throne room, fellow recalled touching port
• Composer accepting very English port