Now Montanella has also committed himself to the club, the prop in outstanding form so far this season and a mainstay of the club's scrum having played in 11 Premiership games since signing from Bourgoin in the summer and scoring two tries - against Gloucester and London Wasps - to boot.
"I am very happy to sign for the next two seasons with London Welsh," said Montanella.
"I had other opportunities but I decided to stay as I share the same vision as head coach Lyn Jones - to secure the long term future for London Welsh in the Premiership - and I am 100% focused on that goal.
"I love the club, the spirit and the supporters; there is a real family feel. Right now I am happy and proud to be a Dragon.'
Head Coach Lyn Jones said: "It could have proved a testing time for Franck adapting to English rugby, but he's taken to the challenge and showed himself as a genuine Aviva standard player. We are delighted to extend his stay here as he will prove a good signing both on and off the field."
Montanella began his professional career at Narbonne and had two seasons with Stade Francais Paris before joining Bourgoin for the 2011-12 season. He gained his only cap as a replacement when France played New Zealand at Eden Park on the summer tour of 2007.