The mother of a woman who allegedly broke into her former partner's home and set him alight, before dying in the fire herself, has given evidence at a coronial inquest.

It is alleged that Sarah Mudge poured petrol on Stanley Obi and his partner and then set them alight after breaking into his home in Logan, south of Brisbane, in March 2022.

Mr Obi received critical burns to more than 90 per cent of his body and died the next day, while his partner escaped with minor burns to her throat.

Ms Mudge perished in the blaze.

If you or anyone you know needs help:

Lifeline (24-hour Crisis Line) : 13 11 14

Kids Helpline : 1800 55 1800

MensLine Australia : 1300 789 978

Suicide Call Back Service : 1300 659 467

Beyond Blue : 1300 22 4636

Headspace : 1800 650 890

ReachOut : au.reacho

See Full Page