Britain's Prince Charles arrives to lay a wreath on the grave of priest Jerzy Popieluszko, a Roman Catholic priest and opposition activist murdered 25 years ago by Poland's communist secret police, on March 15, 2010 in Warsaw. Britain's Prince Charles and his wife Camilla arrived in Warsaw to start a nine-day tour of central Europe that will include a visit to a rare herd of bison in a Polish reserve. AFP PHOTO / JANEK SKARZYNSKI