Priscilla, assisted by her husband, is the earliest known teacher of Christian theology after Paul.
In 1 Corinthians 16:19, Paul passes on the greetings of Priscilla and Aquila to their friends in Corinth, implying that the couple were in his company. Paul founded the church in Corinth around 51; this makes it clear that Priscilla and Aquila were two other of the church's founders.
from answers.com