Hollywood power couple Melissa Gilbert and Bruce Boxleitner have announced they will divorce after 16 years of marriage.

"We have loved each other for a very long time and we share four incredible sons together," the 46-year-old Gilbert said in a statement to E! News. "On behalf of our family we ask to be allowed our privacy during this very difficult time."

Gilbert, a former child star best known for her role as Laura Ingalls in the much-beloved Little House on the Prairie TV series, still makes a lot of cable lady-centric flicks and was president of the Screen Actors Guild. Boxleitner has enjoyed a long TV career and most recently starred in Tron: Legacy.

The couple has one child together, a 15-year-old son named after Gilbert's TV father Michael Landon. She has another son from a previous marriage and 60-year-old Boxleitner has two others.

What caused the split? Was someone cheating? Who gets their little house on the prairie during the property division? Keep reading SheKnows for updates as they happen!