Improve the coherence in this text.
Colmar was founded in the 9th century and is mentioned as Columbarium Fiscum by the monk Notker Balbulus in a text dated 823. This was the Colmar where the Carolingian Emperor Charles the Fat held a diet in 884.
Colmar was founded in the 9th century and is mentioned as Columbarium Fiscum by the monk Notker Balbulus in a text dated 823. This was the location where the Carolingian Emperor Charles the Fat held a diet in 884.