If you have the same grandparent(s) you are first cousins. The same greatgrandparent(s) second cousins.
If there is a generation difference between you,, so that you don't quite fit either first or second cousin, you are first cousins once removed. Two generations, twice removed.
And so ad infinitum, until you get back to Adam and Eve and we are all umpteenth cousins, greatly removed. We are a' Jock Tamson's bairns (or monkeys' uncles)
Then you get that Victorianism "cousins germane" for first cousins, which is nothing to do with Teutonic connections, but is germane in the same sense as "relevant".
Sorry, diversion into pedants'' corner. Yes lovely photos of some beautiful children.