Michael Jackson's father is trying to obtain an allowance from the late singer's estate.

ET has obtained court documents filed by an attorney for Joe Jackson in Los Angeles on Friday, in which the 81-year-old is seeking an allowance from his son's estate.

The papers state that Jackson "has been without support since the death of his son…," and "is in urgent need [of] funds to maintain his household."

Jackson's attorney also says in the document: "For reasons which [were] never explained, [the special administrators of Michael Jackson's estate] excluded Joseph Jackson from their petition although they knew that Michael Jackson had supported for many decades his father…."

The papers also state that Joe Jackson suffered a stroke in 1998, was hospitalized in 2004 for stomach ulcers and "was dependent upon the money provided by his son, Michael Jackson, through his wife, Katherine Jackson, for his support."

The AP reports that a judge has approved $26,000 in monthly payments to his mother and $60,000 monthly for the care of his children -- "Prince" Michael, Paris and "Blanket."