Muhammad Siddique became enraged on learning that his wife, Shabana Bibi, 25, had visited her sister without first asking him if she could go out, her brother Muhammad Azam said.
Siddique and his father then beat Bibi before dousing her with petrol and setting her on fire in Central Pakistan's Muzaffargarh district on Friday, Azam said.
Bibi had been married to Siddique for three years, during which time she had suffered repeated domestic abuse for the couple's inability to have children, Azam said.
Suffering burns to 80 percent of her body, Bibi died of her injuries in hospital on Saturday.
Hundreds of women are murdered by their relatives in Pakistan each year through domestic violence or on the grounds of defending family "honour", say reports.
The Aurat Foundation, a campaign group that works to improve the lives of women in Pakistan's conservative and patriarchal society, says more than 3,000 women have been killed in such attacks since 2008.
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