Actress Melissa Gilbert, who famously played Laura Ingalls on "Little House on the Prairie," has filed for divorce from Bruce Boxleitner, 61, after 16 years of marriage.
The petition papers, obtained by "Extra," cite "irreconcilable differences" as the reason for the split. Gilbert, 47, is also seeking joint custody of their 15-year-old son, Michael.
"We have loved each other for a very long time," Gilbert said in March, "and we share four incredible sons together."
In addition to Michael, Gilbert has one son, Dakota, 22, from her previous marriage to actor Bo Brinkman, while Boxleitner has two other sons -- Sam, 31, and Lee, 26 -- from his first marriage to actress Kathryn Ogilvy.
Read the papers.
Gilbert's sister, "The Talk" co-host Sara Gilbert, 36, has also split from her partner of 10 years, Allison Adler, 44.