FALLS CITY, Neb. (AP) – A Nebraska mom whose marriage in Hiawatha, Kansas at age 14 generated headlines is trying to regain custody of their children.

Four of Crystal Koso’s children, by two fathers, have been in state custody since 2010.

The Lincoln Journal Star reports that the now 21-year-old Crystal, and 29-year-old Matthew Koso were in court last week.

They listened as Judge Curtis Maschman told them an attorney for the children was seeking to end their rights to be parents.

They said they understood and had no questions.

But Crystal, the mother, Matthew Koso and Dominic Pagnano Jr., the fathers, denied the allegations in the petition. Matthew Koso was assigned his own attorney, and he and his wife were provided guardian-ad-litem attorneys to look after each of their best interests.

It’s a new chapter in the story of the girl who got pregnant and married young, and the man who served 15 months in prison for having sex with her from the time she was 12. They married in Kansas, where it’s legal, when she was 14. He was 22.

The couple gained national attention in 2005 after Crystal Koso became pregnant and they married in Hiawatha, Kan. with her mother’s permission. At the time, such a marriage was allowed with parental consent. The case led Kansas lawmakers to set a minimum marriage age of 15.

Nebraska allows people as young as 17 to marry with parental consent.