People reports that the latest court documents from Sophie Turner and Joe Jonas shared a detail about their family that has been a mystery since last year. The publication notes that up until today, documents filed in the couple's divorce proceedings identified their youngest daughter by her first initial, D, Page Six discovered that new filings revealed her full name to be Delphine. The duo's eldest daughter, who is 3 years old, is named Willa.

People adds that the name Delphine has French and Greek roots and is traditionally pronounced "del-feen." The name is inspired by the Greek word for dolphin and also a French term that translates to "of the womb."

Page Six adds that the name surfaced in custody filings, which are taking center stage as Turner and Jonas figure out their divorce. The latest development is Turner's request to iron out a custody agreement for their children before the couple circles back to their separation.

Turner is requesting that the judge assigned to their divorce halt the divorce case, because her children are in an “international child abduction” case. In regard to their kids, as of Sept. 25, the courts have required that Turner and Jonas ensure that their two daughters stay in the New York Area ahead of a pretrial conference scheduled for next week.

According to the order, which both Turner and Jonas agreed to, the court system has the ability to "take or cause to be taken measures under Federal or State law, as appropriate, to protect the well-being of the child involved or to prevent the child's further removal or concealment before the final disposition of the petition."