Official Months of Wisteria: (in order)

1. Altham

2. Frauwa

3. Isorele

4. Adared

5. Gorius

6. Ranvier

7. Elsbeth

8. Lucilla

9. Stanlim

10. Wladis

11. Taerel

12. Zula

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Here comes the smol explanation: 

So all of the names of the months were established when Wisteria was first founded by the great 12 sages of Wisterian history. If you can't already tell, the months were drawn up by the sages themselves, hence named after themselves as well! Of course, since we love equality, 6 of these sages were females and 6 of them were male.

Can you guess by the names of the months who those were? ^.^