The wife of Virginia’s House minority leader was attacked in their Charlottesville home Monday night by a female acquaintance, authorities said.

Nancy Tramontin, the wife of Del. David J. Toscano (D-Charlottesville), was hit several times in the head but never lost consciousness, Toscano said in a statement. Police said Claire Kennedy Ogilvie, 35, was arrested and charged with burglary, abduction and malicious wounding and was being held without bond at the Albemarle-Charlottesville Regional Jail.

In a brief statement, Toscano described the alleged assailant as “a person who we knew but had not seen for over a year.”

Toscano taught sociology in the fall 2010 Semester at Sea program sponsored by the University of Virginia, according to the Semester at Sea’s Web site, and is scheduled to take part again in the summer of 2014. Ogilvie was also on the fall 2010 trip, according to a student who was on the trip.

According to her LinkedIn profile, Ogilvie was a biology teaching assistant, a writing tutor and a career adviser for the Semester at Sea program from 2009 to 2010. Toscano is one of her 33 followers on Twitter.

Neither Toscano nor his son was home at the time of the alleged attack. In the statement, Toscano said he returned to Charlottesville from Richmond when he learned of the incident and took his wife to the hospital. She was released Tuesday.

“It was an odd thing because it all happened on Monday evening and night, and none of us on the street — and this is a pretty close neighborhood — but none of us knew that this was happening until it came out on Tuesday,” said Phyllis Renick, a neighbor of the Toscanos. “Nancy Tramontin is a really great person, and I’m sorry that she got mixed up in something like that.”

Ogilvie, a former lawyer, teaches at William Monroe High School in Greene County, near Charlottesville. She has been suspended from her duties because of the charges, school officials said.