where he and when he was born?

Ste. (not St.) Hilda was female. She was born in Northumbria in 1614. That is in the northeastern part of England, just south of Scotland

Her year of birth was 614, not 1614. Although the word "Saint" is often abbreviated Ste. for females, St. is also OK in English.

To determine where and when someone was born, you would typically need to know the specific individual's name. However, in this case, you have not provided a specific name for the person in question. Please provide the name of the individual you are referring to so that I can help you with the information you are seeking.