Saint Cera
Saint Cera of Ireland (alternately Chera, Chier, Cier, Ciara, Ciera, Cyra, Céire, Keira, Keara, Kiara, Kiera, Ceara, Ciar) was an abbess in the 7th century who died in 679. Her history is commingled with another Cera (alternately Cier, Ciar, Ciara) who lived in the 6th century.