A Colorado inmate has filed a paternity claim with a Minnesota court against the estate of Prince, claiming the musician is his biological father.
In filings with Carver County District Court, Calvin Q Williams of Kansas City, Missouri, seeks DNA testing to determine if he is Prince's child.
In an affidavit included with the court filing, Williams' mother, Marsha Henson, says she had sex with Prince in July 1976 and gave birth to her son the following April.
Under Minnesota law, children are first in line to inherit, which would put Williams ahead of Prince's siblings if the court agrees he is Prince's son.
Williams' attorney, Patrick Cousins, of West Palm Beach, Florida, confirmed that his client is currently imprisoned.
Court and prison records show Williams is at the maximum security federal prison in Florence, Colorado, after pleading guilty in 2013 to unlawfully transporting a firearm.
He was sentenced to seven years and eight months behind bars.