Genealogical Records

I began to see the letters AP in research between the names of my genealogy as in "Llywelyn ap Gruffydd. Is AP equate means child or something. Is it legitimate to genealogical rated. Should I ignore sources that use this?

All three words that you quoted are Welsh. "AB" or "AP" is a name which means "son". It is used before the names in a manner similar to "Mac" or "Fitz".

In your example, it means "the son of Gruffydd Llywelyn.

While you certainly should not ignore it, but you can get a Welsh-English dictionary, if that is where our roots are.

It is as legitimate as "John, the son of Eric. As others have noted, it is Welsh and 1,000 years, more or less. Whenever we get back before 1500 or if we are on a slippery slope, in my humble opinion.

Most people you deal at the time were noble, if not downright royal clerk who followed them to their ancestors were not about to say: "And this is where your grandmother Queen was very friendly with the handsome young gardener-HRH King was absent in Rottingham swiving servants.

You are absolutely right. It means "of" or as you say, "child of", mainly in Welsh.

It is a name that is a combination of a name and the name of the father. In many cases, names pre-date the use of names in some cultures.

I would not ignore these sources. He seems to have been used nearly a thousand years.

Yes, AB or AP means "child", and was how children in Wales have been mentioned, increasingly, AB / AP has been abandoned and the name stuck. The name "Bowen" from AB Owen.