Andrea M. Stoelker, the girlfriend of financer Allen Stanford, who is connected in an alleged Ponzi scheme, has been sued for $560,000 she received in wages and other payments from the Stanford Financial Group of Companies.

In papers filed in Texas federal court, Kevin Sadler, the lead attorney for Stanford receiver Ralph Janvey, claims that Stoelker was “unjustly enriched’’ while serving as president of both Stanford Financial Group Global Management LLC and Stanford 20/20. He also said that Stoelker’s services included work on Stanford’s Caribbean cricket subsidiary.

The 20/20 organization promoted a faster version of cricket, which the financier hoped would attract a wider following to the sport. Stoelker received at least $140,000 from the cricket unit and another $180,000 from Stanford personally, Janvey claims.

“Any services performed by Stoelker were designed to further the operations of the Ponzi scheme and may well have assisted Stanford in attracting new victim investors,’’ Sadler said in the court documents.

Stoelker, who is identified by Sadler as Stanford’s “girlfriend and/or fiancée,’’ said in court filings that she often accompanied Stanford on international business trips and Las Vegas vacations.

She also sought, and was denied, the return of her personal belongings taken from Stanford’s yacht when his assets were frozen by a court order and turned over to Janvey in February 2009.

Stanford is in federal prison in Houston awaiting a January trial on charges that he swindled investors of more than $7 billion through a massive Ponzi scheme operated by his Antigua-based Stanford International Bank Ltd (SIBL). He has denied wrongdoing.