郑兰贞 (鄭蘭貞) zhènglánzhēn
          
              zhènglánzhēn 
              
              proper noun 
              Jeong Nan-jeong 
              Domain: History 历史
              
                , Subdomain: Korea 
              
              
                , Concept: Person 人
              
              
              
                Notes: D. 1565; de facto politician of the Joseon period (Wikipedia '鄭蘭貞')