My database of family members begins with the present and extends
with certainty back to the 14th century, and with some uncertainty back
to the 6th century. The Longoria branch extends back to Pedro de Longoria (ca. 1530-1590), the father of Alonso de la Pontiga (born ca. 1559), in Asturias, Spain, and is by far the most extensive branch
here. Other notable branches here are my wife’s Alcala and Garza
lines, my mother’s Villarreal and Solis lines and my paternal
grandmother’s Treviño and Vidaurri lines.
primary sources of information have been family members, the F. W.
Seabury papers as transcribed by Jose Rene Escobar in his Family Tree
Book, and the various genealogical publications by Guillermo Garmendia
Leal. But I have also relied extensively on other amateur genealogists’
work, most notably those by Pedro T. Rodriguez and Frank Longoria. A
partial listing of my sources is found in the Sources section of this website; please refer to my Database for a much more comprehensive list of my sources.
It has never been my goal to gather all the proper documents to prove
our ancestry. To me, it is sufficient to just know who our ancestors
were, and to know something about them, no matter how inconsequential.
The task is never-ending; it continues to evolve and research continues.
Although I believe my database is very reliable, there are undoubtedly
some mistakes and errors of omission. I welcome feedback from anyone who
finds such mistakes and errors.
The database includes individual photos of some of my immediate
family, ancestors and relatives. Biographical notes are included for
many individuals from generations past, but to honor privacy concerns I
have not included such information for the more recent generations.
Previously, I had included in my database a connection to the royalty of Spain and
Europe even though the connection, extending back to the 6th century AD,
had not been
proved conclusively. I did so because there was much historical evidence
which seemed to indicate that Alonso de Estrada was an illegitimate son
of King Ferdinand of Spain, and I
decided to include the possible but unproven royal connection for completeness and to solicit discussion.
However, the research done by Jose Antonio Esquibel, reported in Society
of Hispanic Historical and Ancestral Research (SHHAR)
Volume IV (1998) and titled "The Paternal Ancestry of Don
Alonso de Estrada, Tesorero y Gobernador de Nueva España, and the
Revised Genealogy of the Sosa Albornoz Family", presents very compelling evidence as to
Alonso de Estrada's true lineage. I now believe Esquibel's work is
the most definitive study to date of Alonso de Estrada's lineage and
that Alonso de Estrada was not an illegitimate son of King
However, Esquibel had an earlier research report in SHHAR (Vol. I,
1994) titled "Lines of Descent from Don Alfonso XI, Rey de Castilla
y Leon, to Don Ruy Diaz de Mendoza y Arellano" in which he
presented eight lines of descent linking King Alfonso XI to Ruy Diaz de
Mendoza y Arellano. Esquibel states that this Ruy Diaz de Mendoza
y Arellano was "...presumably the same man of this name who was
the husband of doña Catalina de Salazar...". This
presumption appears to be quite correct; nevertheless, the reader should
keep in mind that it is a presumption.
I HAVE REVISED MY DATABASE TO INCORPORATE THE RESEARCH DONE BY JOSE
ANTONIO ESQUIBEL. I now show a probable royal connection through
Don Ruy Diaz de Mendoza, descended from an illegitimate son of King
the Database or