So, I guess a new pattern we can add to the games is male/female-confirmed legendary duos without actually having the gender attached to the legendary?
Solgaleo are male Cosmog, meanwhile Lunala are female Cosmog.

Zacian was already heavily speculated female due to the build and certain descriptions talking about how it’s graceful and captivating. Zamazenta isn’t confirmed but I remember it being spoken of as regal and majestic and able to overwhelm its opponents. Zamazenta is Zacian more defensive brother?