Although Saudi Arabia has denied the royal family had anything to do with the assassination of Khashoggi, worldwide intelligence agencies have implicated Crown Prince Mohammed Bin Salman as the main instigator of the murder.
King Salman reportedly approved the compensation to the Khashoggi siblings late previous year in what a former official described as an attempt "to make a wrong right" in the aftermath of "a big injustice", according to the Post.
The children may also receive payments, up to tens of millions of dollars apiece, as part of "blood money" negotiations with the Saudi government, said the newspaper, adding that the Khashoggi siblings have refrained from "any harsh criticism" of the Saudi kingdom.
The chances are good that the Al Saud rulers will successfully leverage their financial resources, as well as coercive rule, to obtain the continued loyalty of Khashoggi's children who have, at least thus far, never publicly challenged the Saudi government's official narrative (s) about their father's killing. Yet even if these trials close the case in Saudi Arabia, the resolution of this file under Saudi law will not resolve this saga internationally with United Nations and US-led investigations continuing. Khashoggi's two sons and daughters either declined to comment or were unreachable, The Washington Post said.
In an exclusive interview with CNN in November, the two brothers described their father as "courageous, generous and very fearless", and issued an emotional appeal for the return of their father's body, which was never found.
Khashoggi, an outspoken critic of the Saudi government, was dismembered in October 2018 by a team of Saudi operatives inside the country's embassy in Istanbul.
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In November, the Saudi public prosecutor indicted 11 unnamed suspects over Khashoggi's killing.
Saudi officials paint the suspected killers as rogue operators who were supposed to bring Khashoggi back to Riyadh alive. It is not known whether Khashoggi's remains have been recovered.
The Saudi government said the royals had delivered their personal condolences to Khashoggi's grieving son and brother.
It is unclear whether Khashoggi's children would be required to forgive or absolve the killers to collect the payments.
Sources close to Khashoggi's family have said they fear possible retaliation for speaking out about their father's death and that the payments are buying their silence.
More settlement money may still be on the table for the siblings. But in their few interviews and public statements, all his children have avoided directing any blame or resentment toward Crown Prince Mohammed and the Saudi royal family.