sporky_rat asked for, "More information on the basics of onomastics on the not-English and not-French. Like Spanish names. How does one find the general usual rules for a woman's name in Christian Spain, 1500's?"
(If you'd like to suggest a topic for me to post about in January, the collection of questions is
here.)
If you want basic information about medieval name construction in a reasonably popular European language, the place to start is
SENA Appendix A. ("SENA" stands for "Standards for Evaluation of Names and Armory".) There's some general information about abbreviations at the beginning of the appendix, and then tables for different languages. The tables are grouped by big geographical regions; you may have to use the search function in your browser, or scroll a bit, to find the exact culture you're interested in. Castilian Spanish is in the Iberian table.
The table has columns for different types of name structures that often show up in medieval documents: Double Given Names, Locative, Patronymic, Other relationship (such as relationships to mothers, siblings, or spouses), Descriptive/Occupational, Dictus (for "also known as" names), and Double Bynames. The final column, Order, tells you how different types of name were typically combined.
Underneath the table, there are notes. The notes may explain more complicated constructions. For example, the notes for Spanish suggest some ways to form a name based on the father's name. Usually, the notes also link to one or two articles that provide a more detailed discussion.
You can also find information on medieval names from specific cultures by going to
The Medieval Names Archive or
the heraldry.sca.org name articles page and following links for the culture you're interested in. However, for popular cultures there may be quite a few links to wade through. Appendix A is supposed to highlight the articles that an expert would check first.
Maintaining Appendix A is one of my jobs as the SCA's Palimpsest Herald, so if you have questions about how to use it, or are particularly pining for more detail on a specific culture, let me know!