Nevertheless, based on various resources and studies analyzing the historical naming trends in medieval Europe, I've compiled a list of popular girl names during the 12th century:
- Mary or Maria: As Christianity continued to spread through Europe, Mary, the mother of Jesus, was commonly revered.
- Joan, Joanna, or Jane: Derived from the Latin "Johannes," the feminine variants were widely used
- Margaret or Greta: These variations have a rich history in European royal households.
- Isobel, Isabella, or Elizabeth: All originating from French or German word for "God promises."
- Matilda or Maud: With possible roots rooted in Germanic origins of a powerful heroine's name.
- Agnes: Stemming from a Greek name signifying purity, virtue, or devotion.
- Alice: Thought to possibly derive from medieval Germanic term that may equate to a noble kind.
- Eleanor: Originated from the Occitan "Alienor," possibly meaning shining light
- Katherine or Catalina: Derived from the Greek word for pure or clean.
- Alice: Believed to come from an old German name element referring to nobility and greatness.
It's important to note that regional linguistic, cultures, and social ranks in various parts of Europe during the 1200s could influence preferences in feminine names. Names would've varied across diverse areas.