. . "Conrad of Swabia"@en . . . . . "Conrad (25 April 1228 \u2013 21 May 1254) of Hohenstaufen was Duke of Swabia (1235\u20131246), King of Jerusalem (as Conrad II; 1228\u20131254), King of Germany (as Conrad IV; 1237\u20131254), King of Italy and of King of Sicily (as Conrad I; 1250\u20131254)."@en . "1254-05-21Z"^^ . . . . "King of Germany" . . "1228-04-25Z"^^ . "1228Z"^^ . "1254Z"^^ . "Conrad IV of Germany"@en . . "1237Z"^^ . "1254Z"^^ .