Conversation so far:
What happened with Williams during the Three Tier titles?
Williams then won the Tier I Italian Open in Rome.
Did she play any of the tournaments with her sister?
Williams teamed with Serena to win the women's doubles title at this event, the first Grand Slam title the pair won together.

Question: Where or when did she win her first title?
Self-contained rewrite: Where or when did Venus Williams win her first title?