Board Thread:General Discussion/@comment-30860185-20161226231936/@comment-27794543-20161227042108

Anya was never the Commander, but she was a mentor to Lexa. When Lexa was young, she (like Tris) was Anya's second (a trainee warrior under Anya). When Lexa was 16, the previous Commander died, so all known Nightbloods were summoned to the Conclave. Lexa won the Conclave and became the Commander, while Anya remained a Trikru warrior.