Brigandine gets trademarked by Happinet Games. More Information about it will be released in Tokyo Game Show 2019. This will happen around 9/12 to 9/15.
I found a Japanese site that states information about the base stats and stat growths of monsters in Grand Edition. It seems more accurate than http://bge.ffsky.cn/Monste08.htm , so I will use the information from that site instead.
The site is: http://www20.atwiki.jp/brigandine/pages/37.html
I recently went through and revised the stat growth tables on the monster pages. They now correspond with the stats listed in Gourry's and Evil R's Character FAQ on GameFAQs (which can be viewed here if anyone wants to see it). I've found this FAQ to be highly accurate and a good source of Brigandine-related information, but if anyone has found a different and more reliable source to use, please let me know.