Edward I's Iron Ring of Castles
                        
                            GPTKB entity
                        
                    
                Statements (23)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:defensive_fortification_system | 
| gptkbp:architect | gptkb:James_of_St._George | 
| gptkbp:built | late 13th century | 
| gptkbp:builtBy | gptkb:Edward_I_of_England | 
| gptkbp:historicalSignificance | gptkb:Anglo-Welsh_Wars consolidation of English rule in Wales | 
| gptkbp:includesCastle | gptkb:Builth_Castle gptkb:Rhuddlan_Castle gptkb:Caernarfon_Castle gptkb:Conwy_Castle gptkb:Harlech_Castle gptkb:Aberystwyth_Castle gptkb:Beaumaris_Castle gptkb:Flint_Castle | 
| gptkbp:locatedIn | gptkb:Wales | 
| gptkbp:notableFeature | concentric design water access for supply and defense | 
| gptkbp:purpose | military control of Wales symbol of English authority | 
| gptkbp:UNESCOWorldHeritageSite | gptkb:Castles_and_Town_Walls_of_King_Edward_in_Gwynedd | 
| gptkbp:bfsParent | gptkb:Beaumaris_Castle | 
| gptkbp:bfsLayer | 6 | 
| https://www.w3.org/2000/01/rdf-schema#label | Edward I's Iron Ring of Castles |