Thank you for pointing out that "Anne of Świdnica" -wikipedia -wiki has only 10 hits, not 164, as many web pages mirror Wikipedia content, and not all pages acknowledge that. Allowing the further propagation of such OR terms is clearly unacceptable.

When looking at Google Scholar "Anne of Swidnica" has at least one hit (compared to none for the diacritic version or the Polish name), and that refers to the book Medieval Germany: An Encyclopedia already mentioned above, which on page 110 uses  inconsistent naming by two different authors, while elsewhere preferring Schweidnitz. Google Scholar, with 25 hits for "Anna von Schweidnitz", shows that this is the proper name used internationally by scholars.   Discuß