The 21-year old is said to confessed to her he started the blaze in January 2012.
It's thought the man has now been charged with murder after the fire in the village of Rosiers-sur-Loire in January 2012 - one man died and several apartment blocks were destroyed.
Devon and Cornwall Police have confirmed the man had been arrested in Exeter in January this year.
He appeared at Westminster Magistrates Court before being extradited to France.
Body found in Bideford fire investigation
Three teenagers currently on bail
Royal Clarence Hotel redevelopment to start
Work to start on historic city centre building
Road closures for Tar Barrels event
Organisers list road closures and residents-only access.
More redundancies at Devon shipbuilder
Redundancies could include managerial roles.
Devon's fire service change alarm response
Changes could save hundreds of thousands of pounds.
Exeter woman averts disaster at Greek airport
Exeter woman hailed 'a hero'.
