org.docx4j.wml.ObjectFactory wmlObjectFactory = new org.docx4j.wml.ObjectFactory(); R r = wmlObjectFactory.createR(); // Create object for rPr RPr rpr = wmlObjectFactory.createRPr(); r.setRPr(rpr); // Create object for rFonts RFonts rfonts = wmlObjectFactory.createRFonts(); rpr.setRFonts(rfonts); rfonts.setAscii( "Cambria Math"); rfonts.setCs( "Cambria Math"); rfonts.setHAnsi( "Cambria Math"); // Create object for t (wrapped in JAXBElement) Text text = wmlObjectFactory.createText(); JAXBElement textWrapped = wmlObjectFactory.createRT(text); r.getContent().add( textWrapped); text.setValue( "⊥ ⊇");