Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:castle
|
| gptkbp:builtBy |
gptkb:Byzantine_Empire
|
| gptkbp:builtInCentury |
10th century
|
| gptkbp:condition |
ruins
|
| gptkbp:elevation |
about 800 meters
|
| https://www.w3.org/2000/01/rdf-schema#label |
Ustra Fortress
|
| gptkbp:locatedIn |
gptkb:Bulgaria
gptkb:Kardzhali_Province |
| gptkbp:locatedNear |
gptkb:Ustren
|
| gptkbp:material |
gptkb:stone
|
| gptkbp:openToPublic |
yes
|
| gptkbp:significance |
historic site
|
| gptkbp:usedDuring |
gptkb:Middle_Ages
|
| gptkbp:bfsParent |
gptkb:Eastern_Rhodopes
|
| gptkbp:bfsLayer |
6
|