Bertha's letter is of interest in that she appears to have little knowledge of Baghdad politics or culture, and it is for this reason that details of her correspondence were recorded by one of the Muslim chroniclers.
Surat Berthe yang menarik di dalamnya adalah bahwa ia memiliki sedikit pengetahuan mengenai politik atau budaya Bagdad, dan karena alasan inilah penjelasan korespondensinya dicatat oleh salah seorang penulis babad Muslim.