Conversation so far:
Please tell me something interesting about Dolph Lundgren's personal life?
Lundgren resides in Los Angeles, California.
He speaks Swedish and English, as well as smaller amounts of French, German, Italian.
is he married?
he married Anette Qviberg.
when did they marry?
In 1994.
who is she?
He is an avid football fan.
He supported Everton FC when he lived in Europe, but developed more of an interest in international football tournaments.
was his wife somebody famous?
Anette Qviberg, a jewellery designer and fashion stylist.
do they have children?
They have two daughters: Ida Sigrid Lundgren and Greta Eveline Lundgren, both born in Stockholm.
are they still married?
After the incident, Lundgren's elder daughter, Ida, suffered from PTSD.
His wife was the "most traumatized", and as of 2011, they are divorced.

Question: what incident was this?
Self-contained rewrite: what incident did Dolph Lundgren's suffer PTSD from?