Royalachillean

Not to be confused with [./https://lgbta.wikia.org/wiki/Achillean achillean]The term/prefix achillean- (specifically with a dash after it, otherwise it refers to [./https://lgbta.wikia.org/wiki/Achillean achillean]) refers to three genders in the [./https://lgbta.wikia.org/wiki/Prince_system Prince], [./https://lgbta.wikia.org/wiki/Princess_system Princess], and [./https://lgbta.wikia.org/wiki/Royal_system Royal] Systems related to being some form of achillean royalty. The three genders derived from achillean- are priachillean, achilleanicesse, and royalachillean.

Priachillean
Priachillean is a gender in the [./https://lgbta.wikia.org/wiki/Prince_system prince system] connected to being a achillean prince; this gender is also connected to being achillean, achillean aesthetics, prince aesthetics, and non-binary boyhood.

Achilleanicesse
Achilleancesse is a gender in the [./https://lgbta.wikia.org/wiki/Princess_system princess system] connected to being an achillean princess; this gender is connected to being achillean, achillean aesthetics, princess aesthetics, and non-binary girlhood.

Royalachillean
Royalachillean is a gender in the [./https://lgbta.wikia.org/wiki/Royal_system royal system] connected to being achillean royalty. This gender is connected to being achillean, achillean aesthetics, royal aesthetics, and being non-binary.

History
Priachillean, achilleanicesse, and royalachillean were all coined on April 12, 2021 by Tumblr user Pupyzu, who created all of the flags at the same time.