Roe, who was fined pounds 100 for showering Russell Claydon with pasta in a restaurant 12 months ago, shot a final-round 66, which took him to a 14-under-par 274 total, to win by one shot from the Australian-based Swede, Gabriel Hjertstedt.
The US Masters champion, Jose-Maria Olazabal, shot a 69 to finish third, four shots behind Roe, with Worksop's Lee Westwood confirming his potential with fourth place on nine under.
The 31-year-old Roe, who finished equal fourth last year and runner-up in 1989, said: 'I felt they owed me one and the French title is one I've always wanted to win. I won the Lancome Trophy in Paris two years ago so it is a good country for me.'
Scores, European Order of Merit,
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