A woman accused of murdering Brisbane rugby league identity Tony McGrath is expected to seek bail.

A former brothel madam accused of murdering a Brisbane rugby league identity is expected to apply for bail on Tuesday.

Susan Ellen Stewart is one of two people charged with killing Tony McGrath in May last year.

McGrath, the 57-year-old president of the Brisbane Rugby League Referees Association, was shot in his Woolloongabba garage.

Police say Stewart had been in a relationship with Mr McGrath for a number of years.

A 38-year-old man has also been charged with the referee’s murder, which police allege was financially motivated.