. "early-18th-century (trenches)" . . "1480s (outer defenses)" . "Smederevo Fortress" . . "Smederevo" . . . "1430 (inner city)" . "Smederevo Fortress#Architecture" . "1428" . "Smederevo castle" . . . . . . . . "1439 (fortified suburb)" . . . . "Smederevo Fortress" . . . "Castle of Smederevo" . "the town's fortress" . "Siege of Smederevo" .