R. KELLY ENGAGED TO JOYCELYN SAVAGE ... Her Family Doesn't Buy It

Joycelyn Savage, one of his alleged victims, claims in a letter to the judge

that R. Kelly is engaged to be married to her; however, her family claims they were unaware of this.

In correspondence with the federal judge just before Robert Kelly was sentenced,

Joycelyn confirmed the engagement by writing, "I'm Robert Kelly's fiance," According to legal documents acquired by TMZ.

They didn't mention when they got engaged in the letter she addressed to the judge pleading for a moderate punishment.

Gerald Griggs, an attorney for Savage's parents, tells TMZ that she never informed the family

about the engagement and that they had never even discussed the notion in advance.

Griggs tells us that he thinks it strange that Savage sneaked the information into the letter that was given to the court rather than testifying about it under oath.

Savage's family "seriously doubts" the engagement rumor and wants to get in touch with her to find out the truth.