It is common to find surnames similar to Monkule. This is because many times the surname Monkule has undergone mutations.
The fact that there was no unified spelling for the surname Monkule when the first surnames were formed allows us to find many surnames similar to Monkule.
Errors in writing, voluntary changes by the bearers, modifications for language reasons... There are many reasons why the surname Monkule may have undergone changes or modifications, and from those modifications, surnames similar to Monkule may have appeared, as we can see.
Discerning whether the surname Monkule or any of the surnames similar to Monkule came first is not always easy. There are many reasons that could have led to the surname Monkule being written or pronounced differently, giving rise to a new, different surname Monkule with a common root.