PERSON@1 , LOCATION@1 - abandoned in the 15th century Rungholt -- LOCATION@2 in LOCATION@3 , sunken during the `` grote Mandraenke '' , a storm surge in the LOCATION@4 on January NUMBER@1 , NUMBER@2 LOCATION@5 , LOCATION@6 - prosperous city lost to the sea in NUMBER@3 .

Saeftinghe , LOCATION@6 - prosperous city lost to the sea in NUMBER@3 .
