The 47-year-old mother-of-two married Junaid Hussain, a 21-year-old computer hacker from Birmingham.
Hussain, who changed his name to Al-Britani, was killed in a US drone strike in August 2015.
In shocking new footage released by ISIS yesterday a young white blonde-haired boy by the name Abu Abdullah Al-Britani, is seen executing a man in Raqqa, Syria.
The nine-minute video shows a row of prisoners dressed in orange jumpsuits kneeling in front of five young boys dressed in military gear.
Around 50 British-born children are living in ISIS strongholds, according to the Quilliam Foundation.
ISIS killers normally take on a new name, often using their homeland as inspiration and there have been several Al-Britanis.
Jihadi Al-Britani, the ISIS name of Portsmouth man Assad Uzzaman, died in the country last year.
The other children in the unverified footage appear under the names Abu Ishaq al-Masri (the Egyptian), Abu Fu'ad al-Kurdi (the Kurd) and Yusuf al-Uzbaki (the Uzbek).
Some of the children, holding firearms, are believed to be as young as eight-years-old.
During the clip statements are read out in Arabic and the boys appear to use handguns to murder the men.
ISIS calls its youth grooming programme “Cubs of the Caliphate” and has already shown other children it claims are British.
The terrorists have increasingly used child soldiers as it comes under increased pressure from coalition forces through air strikes in Iraq and Syria.
In February, the terror group released a video reportedly of a young British boy blowing up a car and killing three prisoners inside.
He is believed to be the four-year-old son of Grace 'Khadija' Dare from Lewisham, south-east London, who travelled to Syria in 2012.
The Quilliam Foundation around 50 British children are being groomed to become ISIS fighters.
Jones left her eldest son, Jonathan, in Britain when she fled to Syria.
During her time living under ISIS, Jones has used social media to make a raft of threats against the West using aliases including Sakinah Hussain and Umm Hussain al-Britani.
Jones has also tried to lure teenage girls to Syria to become jihadi brides.
She has been added to a list of most-wanted terrorists under sanctions by the UN and last September was also added to the US government's list of "foreign terrorist fighters", Express reported.
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