Prince presets an award on stage at the 57th Annual Grammy Awards in Los Angeles February 8, 2015. (ROBYN BECK/AFP/Getty Images)

Prince presets an award on stage at the 57th Annual Grammy Awards in Los Angeles February 8, 2015.

*Two people claiming to be heirs of Prince are refusing to take blood and genetic tests to prove their relationship to the musician.

Brianna Nelson and Jeannine Halloran, on behalf of her minor daughter, have filed estate claims late Monday in Carver County District Court. According to The AP, they filed an objection to a judge’s order giving a special administrator the power to require physical testing of such claims.

Nelson says her father was Prince’s half brother, Duane Nelson Sr., making her Prince’s niece. Halloran says her minor daughter, V.N., was Duane Nelson’s granddaughter, making her Prince’s grandniece.

Their joint filing says they have already offered proof of their relationships to Duane Nelson and of Duane Nelson’s relationship to Prince, and that this alone should satisfy Minnesota’s law for presumption of paternity.