The people who peddle this idiocy are clowns trying to discredit this board.
See how old Justin was when Margaret Trudeau FIRST MET Fidel?
Do you know how sex works? And where babies come from?
Yes, Justin and Fidel have similar features and this may well indicate that they are related. So who are Margaret's ancestors? Pierre Trudeau's ancestors? Fidel Castro's ancestors?
There are several Catholic Illuminati families including the Habsburg dynasty who intermarried with the Spanish royals as soon as the Pope granted Spain the lion's share of the Americas. This is where the real digging needs to happen.
And digging genealogy is not easy. It is made even more difficult because of the breeding practices of the Illuminati which mean that the officia; records are often wrong. In fact, the best way to figure out stuff like this is to DNA test the individuals concerned. And who has the ability to collect DNA samples to do this? NOT YOU! So this is something that should be left to the intelligence agencies in most cases.
The Adolf Hitler/Merkel ancestry is one of the few cases where we can actually make a bit of headway because of German naming customs. Angela Merkel's middle name is Dorothea which suggests a female ancestor in the Windsor/Saxe-Coburg-Githa family. But until there is a lot more digging, done by German speaking people in Germany and Austria, we have only a suspicion.