Just checking you know the Heshemites are part of the Arab Quarish tribe; Mohammad ('the islamic prophet') was a descendant of the same Heshemite tribe (I think his great grand-father), of one clan belonging to that tribe, and so was Mo's daughter Fatimah.
Correct. Many Hashemites trace their lineage through Muhammad’s Uncles such as Abbas who created the Abbasid Caliphate.
Which is why having people like the King of Jordan being friendly to the West helpful, since is a descendant of the Prophet, unlike the backstabbing Saudis.