There was a possibility that they travelled from Autun to Tours, probably via Orleans. Tours had a special importance because of the shrine of the missionary bishop, Martin. Bertha and her chaplin Bishop Liudhard came from Tours. This flew from his hand to a great distance, and as a result a spring gushed out and the crowed ceased their aggressive attitude. A light also rested over the elm tree where the missionaries were reposing.
Many scholars believe that the missionaries spent the winter in Paris.
I find no good reason for this assumption. The bloody conflict between Fredegund of Neustria and Brunhild of Austrasia could not made their stay in Paris comfortable. Furthermore, Fredegund was not renowned for her orthodoxy. Among so many cares and anxieties which you sustain for the government of the peoples under your sway, it is to your exceeding praise and great reward that you are helpers of those who labour in the cause of God. And, since you have shewn yourselves by the good things you have already done to be such that we may presume still better things of you, we are moved most gladly to request of you what will be to your own reward.