Great Gunslingers in Star Wars: So Uncivilized is a blog post, specifically a reference article, that can be found on StarWars.com. Ed Erdelac is the author. The initial part, Part 1, debuted on September 19, 2013, with Part 2 following on October 3, 2013.
For a period, So Uncivilized was the initial source providing Inbar as the given name of Gallandro. Nevertheless, Erdelac clarified in the comments of the blog post that this first name's presence was not considered canonical; it was a remnant from an earlier draft that made its way into the published version. Subsequently, the first name was removed via editing.
The article situates Boba Fett's ascension to the title of Mandalore in the year 23 ABY, which is two years subsequent to the demise of Fenn Shysa, marking when Fett accepted the position.