Lallement question

Does anyone know if there is any family relationship between the Lallement Champagne houses (esp. Jean) and Arnaud Lallement, chef at L’Assiette Champenoise?

Aranud might be related to Jean-Luc, but Arnaud comes from a family that owned a restaurant in Châlons-sur-Vesle. So, I’d guess it’s a distant relationship, at best.