Wasn’t Robin’s family Loxley, or there are different variation in the myth?
There's quite a few remaining ( parts of ) early versions of the myth. The Robin Hood story we know is from the Romantic period and heavily rewritten, and after that Disneyfied.
The general gist of the original stories were more classic Tom & Jerry caperish**, with Robin a lot darker, and the Sherriff more a beset-upon bureaucrat doing his best to cope with Robin's antics.
No maid Marians and Kings John/Richard either, nor, for that matter a Merry Band, or Band of any kind. Not always in Sherwood Forest either.
Various "Brother Tucks" , who all were... shall we say... Less than Holy... And quite often antagonistic to
both, or completely useless.
They're basically rather sword-and-bucklerish satires of some aspects of Life at the time, at a time when you had to be ....rather careful criticising TPTB.
** In fact, the early Tom and Jerry's have almost exactly the same dynamic, and it's my suspicion the writers
did use the older versions as inspiration for the scripts. There's simply too many parallels.