Both Fox and Paradox were DOS databases that competed with dBASE.
1) Visual FoxPro did not show up until Paradox was a memory (in practice)
2) FoxPro for Windows was just a GUI terminal for executing dBASE code.
3) Paradox for Windows 4.5 was already out in 1993 and had very advanced features for a desktop database that nothing could touch. I know I was there.