Libre Office shows Garamond but font manager doesn't

There was a Garamond font in my Libre Office a few days back. When trying to solve another issue (long story) I downloaded a couple of ttf files and installed them. They look awful, so I want to go back. But now I can't find them. I installed font manager and it shows me lots of fonts but not actually Garamond. Libre Office shows just one Garamond, though I loaded two. I loaded them with font viewer. I looked in my ~/.fonts, /usr/local/share/fonts/, /usr/share/fonts but no Garamonds there so I don't know where LibreOffice is finding the Garamond it is showing me. It occurs to me that it might be a substituted font, provided because I have existing documents that use Garamond. I don't know how to check if this is true. Does anyone know where that Garamond is actually coming from?

Update: I used gedit to look at the list of fonts and found there are two fonts called Garamond. I don't know if LibreOffice is using one of those, but I expect it is. However I also don't yet know how to remove both of them and reinstall what I had before. But this doesn't now look like a LibreOffice issue, except that it is (quite reasonably) presenting just one font when there are two of the same name.

Solution 1:

You can find the answer to your problem in this link. You should check what is the default font that is used in case of a missing font. Then change your text to use that font. If nothing changes, it means Garamond is not installed on your machine. If it does change, then what you were seeing is Garamond.

Edited: Thanks to muru

Apparently, Garamond font is not free. So, most probably you don't have the font on your system. Note, that the substitution is done by LibreOffice and not the Ubuntu itself.

In LibreOffice go to Tools > Options ..., select the section Fonts. You should be able to see what font is being used in case a font is not found.