The new owners of Harrods—the qatari royal family—have tastefully removed any mention of “engagement” from the display.
The importance of the qatari statement is, all things considered, negligible.
Most of the world knows Abdul Rahman Omeir al-Naimi as a qatari history professor and human-rights activist.
probably from Arabic katran "tar, resin," in reference to petroleum. Related: Qatari.
Note: Qatar was a British protectorate from 1916 to 1971.
Note: It has successfully exploited its oil reserves since 1949.