March 23, 2016 07:15 PM

Frances Bean Cobain has filed for divorce from her husband Isaiah Silva, PEOPLE confirms.

In divorce documents obtained by PEOPLE, the 23-year-old daughter of Courtney Love and the late Kurt Cobain is citing irreconcilable differences, after 21 months of marriage.

Cobain states in the documents that Silva – whom she wed on June 29 2014 – should not be entitled to any money from her father’s estate, which is valued at $450 million.

The filing asks that all premarital assets including Cobain’s inheritance be awarded to her as separate property.

Frances Bean Cobain
Dave Benett/Getty

The pair have been in a relationship for the last five years, but have kept a relatively low-profile and Cobain has not publicly acknowledged their marriage.

Cobain is said to be open to paying Silva – who fronts rock band The Eeries – spousal support.

TMZ was first to report the news.

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