CAMBRIDGE — Holidays are a time to celebrate tradition, but if your family is on another continent, you have to bring the traditions with you.

This is what Fabien Fieschi, 39, consul general of France in Boston, has done. Originally from the coastal city of Marseille, Fieschi (pronounced Fee-es-key) arrived in this post in August and won’t be home for Christmas. Instead, he will have a Provencal-style celebration here, with his Japanese wife, Yuki, 40, and their sons, Emilien, 9, and Julien, 7, at a table spread with Les Treize Desserts de Noël, the 13 desserts of Christmas. They will also gather around a small creche that his mother, Jacqueline, made for this peripatetic family.