I'm 99% certain Antonius is male.
According to a dataset of 738, the average Antonius is around 42 years old.
Ancient Roman form of Anthony. This is also the official Dutch form of the name, used on birth certificates but commonly rendered Anton or Antoon in daily life.
We use a combination of data from the internet, and our own Machine Learning models to make these predictions.
In a gist, we use a Machine Learning model trained on a diverse global dataset of 100m+ names, and use it to predict different traits for a person based on first name!
NameGuessr guesses a person's nationality, age, and gender based on their name. We also try to give insightful info around the name's origin, name meaning, and name pronounciation.