en.wikipedia.org/wiki/Flag_of_Saudi_Arabia

In vexillology, **“canton” has a specific positional meaning**: it is the *top inner quarter* of a flag (i.e., the upper corner nearest the flagstaff/hoist). So the post’s wording **“lower right canton”** is internally contradictory as a matter of definition: the lower-right area is the *fly* end (and lower), not the upper-hoist quarter. This doesn’t by itself prove where the Saudi Royal Standard’s emblem is placed (that’s a separate question); it shows that describing any element as being in the **“lower right canton”** is terminologically incorrect. A correct phrasing would be something like “lower right corner” or “lower fly,” depending on intended meaning.