I'm 99% certain Alfonso is male.
According to a dataset of 28265, the average Alfonso is around 67 years old.
Spanish and Italian form of a Visigothic Germanic name, probably meaning "noble and ready", from the element adal "noble" combined with funs "ready". Other theories claim the first element is hadu or hild (see Ildefonso), both of which mean "battle". It is possible that two or more names merged into a single form. This was the name of six kings of Portugal and kings of several ancient regions of Spain.
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.