which parameters or elements defaults to Times-Roman in FO output?

Hi,

After changing body.font.family, title.font.family, and
symbol.font.family  to Verdana, and keeping  "monospace" for
monospace.font.family, Adobe Acrobat Pro still reports the PDFs
generated to have Times-Roman somewhere (in addition to the expected
fonts). Which parameter or element am I missing?

I'm using the DocBook 5.0 stylesheets and embedded tools shipped with
oxygen 10.0

Best regards,
Bergfrid Skaara