Maria Shriver

Maria Shriver

Six weeks after Arnold Schwarzenegger revealed he had fathered a child out of wedlock, his wife Maria Shriver filed divorce papers Friday to end their marriage of 25 years.

The former television journalist and Kennedy family heir cited irreconcilable differences but offered no additional details about the breakup.

The former action star and former governor admitted he fathered a child with a member of his household staff years ago.

Shriver’s filing does not indicate the couple has a prenuptial agreement, which likely means Schwarzenegger’s earnings from his career as a Hollywood megastar will be evenly divided with his estranged wife.

She is seeking spousal support but any amount would be determined later, either through a settlement agreement or by a judge. The former couple’s breakup is expected to be handled mostly behind closed doors.

Several of Schwarzenegger’s biggest hits, including “Predator,” “True Lies” and “Terminator 2” were made during his marriage to Shriver.

Shriver was an award-winning TV journalist but put her career on hold when Schwarzenegger ran for governor.

Economic disclosure forms filed when Schwarzenegger left as California governor in January show he has interests in at least eight entities each worth $1 million or more. An exact tally of his wealth is impossible to calculate.

The forms show the “Terminator” star retains rights to intellectual property from his days as a fitness guru and movie star.

Shriver’s holdings are more modest but are listed in the disclosure as being worth more than $1 million. She is a member of the Kennedy family and is a beneficiary of some of its assets, and also owns rights and royalties from her work as an author, the filings show.

Shriver and Schwarzenegger have four children together, including two sons who are still minors. Shriver’s petition seeks joint custody of the teens, who are 17 and 13.