Why/How these names have different grammatical endings: Marija - Natalija? Or do they have the same endings in Dative case? Could somebody give me all 6 singular case endings for these two names for women, please.
Nom: Мария Наталья Gen: Марии Натальи Dat: Марии Наталье Acc: Марию Наталью Inst: Марией Натальей Prp: Марии Наталье
The endings differ indeed: Мария belongs to declension 1-7a while Наталья belongs to 1-6a
Note that both names have complementary forms (Ма́рья and Ната́лия), accordingly, which do decline similarly to Наталья and Мария (Наталия and Мария both belong to 1-7a; Наталья and Марья both belong to 1-6a).
Before the orthography reform of 1917, both words ended in iѣ in both dative and prepositive.