FindAGrave was independent once (so was Geni), but Ancestry bought it.
But the companies take zero responsibility for the user-contributed genealogy that they carry, even if they use it as an inducement to subscribe.
So the stuff you find on the internet should be taken as unreliable, in general.
On Geni, if you find a line of Master Profiles worked up by a curator, you have a much better chance.
But a lot of dodgy genealogy has found its way into published books that look good, and some of it sneaks through.
However, even the internet can't be wrong all the time, and as it happens, the Dymoke - Washington line is good.
In America, tbere' s always more land. But in Europe, the aristocracy had to exist in a finite space that was already full. As the number of descendants multiplied, the acreage per descendant shrank. The sons of an earl couldn't all be earls. A minority stayed at the top, but most descendants had to slide down the social scale.
So as you follow lines of descent down from royalty, you get a steady decline in social status. By the time America was being colonized, there were descendants of King Edward Iii (d 1377) among the sort of people who were doing the colonizing.
See Roland Baker's projects for a list. George Reade is the key figure for Washington.
https://www.geni.com/projects/Southern-Gateway-Ancestors-of-Proven-...