In the year 5017 (1257), several hundred Baalei Tosafos, led by Rav Yechiel of Paris, left Northern France on a journey to Eretz Yisroel. Rav Eshtori HaParchi, the author of Kaftor VaFarech, who lived two generations later, records a fascinating story (Vol. 1, page 101 in the 5757 edition) ...