Dudley Dursley with his parents
|Full name|| Dudley Dursley|
|Taxon|| human Muggle (presumed)|
|Relatives|| Vernon Dursley, father
|Personal items||none known|
|In the canon|
|Wikia • Wikipedia|
The idea of having a son named "Dudley Dursley" upset Petunia so much that she begged her sister Lily to give her a potion that would make her beautiful and liked by other people; Lily eventually complied when Petunia threatened drastic action.
It is unknown whether Vernon Dursley married, but if he did, it can be presumed that if he had a son he would have named him Dudley; thus, there may be a Dudley Dursley somewhere in the MOR universe.