The Brother's Grimm ultimately decided to add Sleeping Beauty into their publication of fairytales after deciding that due to its resemblance to the story of Brynhild and Sigurd, that it was a legitimate German tale. Some modern folklorists will tell you that this tale, among others, has a heavy French influence. However, I believe this to merely be an attempt to deny the existence of a German national identity. Even in my own personal copy of Grimm's fairytales (a 2015 publication of Margaret Hunt's 1884 translation of Kinder- und Hausmärchen), there is an introduction written by (((Jane Yolen))) about how the nationalistic writings of the Grimm's and their legacy of attempting to cultivate a national identity by collecting the tales of our folk, were later "corrupted" by Hitler and the Nazi regime. Did they also "appropriate" the legacy of folklorists who collected the fairytales of Ireland? Of Italy? Russia? England? France? The Brother's Grimm were a catalyst that led to a continent-wide interest in preserving the folk tales of one's nation.
Many of our fairytales are ancient, dating back to the Bronze Age and Paleolithic Era. Of course it is likely that there would be cognates found across the Indo-European world. As with the case of the tale The Singing, Soaring Lark being the Brother's Grimm German cognate to the classic French tale Beauty and the Beast, and the blind witch from Hänsel und Gretel believed to be a possible Germanic analogue of the Slavic figure of Baba Yaga.
Many modern scholars have ignored this when it suits them, promoting a global message of "your fairytales are universalist goy!" While it is true that similar types of stories can be found across both Europe and around the world, Grimms fairytales are so inherently Teutonic and deeply embedded in our psyche. You will never hear prominent (((Asatru))) "leaders" and "folk builders" promoting fairytales as part of our lore and myth, yet these stories have such a profound cultural impact upon us as Teutonic peoples, being passed on generation after generation.
The tale of Little Briar Rose is, in my opinion based off my own research and personal intuition, not simply an integrated French tale, but also a deeply German tale too, with both Perrault and Grimm's versions connecting back to our Indo-European dawn goddess Hausos.
Looking more deeply into fairytales, I have found that there are many tales with a Spring/Dawn maiden archetype, which to me is indicative that solar/dawn worship was very prominent and important to our folk many generations ago, and still can be again today!!
Hail the Dawn! 🌹🌄