Jonas and Turner have not publicly shared their baby girl's name since her birth last summer
The estranged couple, who share two daughters, have kept their second baby's name under wraps since her birth in July 2022. Recent court documents have referred to their younger daughter as D, but new documents obtained by Page Six reveal that the 14-month-old is named Delphine.
The name, with French and Greek origins, is traditionally pronounced "del-feen" and is inspired by the Greek word for dolphin, and a French term meaning "of the womb."
Delphine and big sister Willa, 3, are at the center of an ongoing custody dispute between the Game of Thrones alum, 27, and the musician, 34.
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On Monday, the former couple temporarily agreed to keep their daughters in New York, according to documents filed in New York and obtained by PEOPLE.
The interim consent order states that Turner and Jonas are ordered to keep their kids in the Southern and Eastern districts of New York, which includes New York City, Long Island and the Hudson Valley, after the pair's contention over custody in courts in both Miami and England.
If the order — which both parties consented to — is violated, the documents state that the court has the right 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."
Last week, Turner sued her estranged husband for wrongful retention of their daughters, claiming that Jonas was withholding their passports and not allowing them to return to England.
The complaint against Jonas called for "the immediate return of children wrongfully removed or wrongfully retained," with Turner's legal team asserting the "wrongful retention" began on Sept. 20.
Turner claimed that she and the musician agreed to declare England their "forever home" in conversations that took place over Christmas 2022 as they prepped for the year ahead.
Shortly after Turner filed her complaint, Jonas released a statement disputing her claims and saying that he believed the two had reached an agreement to work on a co-parenting plan.
“After multiple conversations with Sophie, Joe initiated divorce proceedings in Florida, as Florida is the appropriate jurisdiction for the case," the statement read. "Sophie was aware that Joe was going to file for divorce. The Florida Court has already entered an order that restricts both parents from relocating the children. Sophie was served with this order on September 6, 2023, more than two weeks ago."
The statement went on to allege that less than 24 hours after a "cordial meeting" during which "Joe's impression" was that they'd reached an "amicable co-parenting setup," "Sophie advised that she wanted to take the children permanently to the UK. Thereafter, she demanded via this filing that Joe hand over the children’s passports so that she could take them out of the country immediately."
Jonas and Turner tied the knot in 2019 after nearly three years of dating. At the time of their split, each posted a joint statement to their social media accounts that announced the end of their four-year marriage.
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