If the crown princess is a member (imperial princess or princess) of the imperial family before marriage, she continues to have the original position as well as crown princess after marriage (until she becomes an empress).
皇太子妃が成婚前より皇族（内親王又は女王）であった場合は、成婚後も（皇后となるまでは）親王妃であるとともに引き続き元来の身位も併存（保持）する。