With just that much to go on, I struck out. If this was part of a dinner set, other pieces may have been marked with a name. And there were decorating studios who bought blanks from porcelain companies, and did their own painting. And their own marks.
If it is a transfer design, there's a subtle pattern of little "dots". Sometimes the transfer is enhanced with hand trim. Hand painting looks more brush stroke.
A handpainted display plate, marked Bavaria, can sell for $75 in a shop. Quality, painting style, condition all count. A handpainted dinnerplate, perhaps $35 ish.
Best wishes, KB