Prof. Mortel:
Medieval fortifications of York, UK (2)
Prof. Mortel:
Medieval fortifications of York, UK (3)
Prof. Mortel:
Medieval fortifications of York, UK (4)
Prof. Mortel:
Medieval fortifications of York, UK (5)
Prof. Mortel:
Medieval fortifications of York, UK (6)
Prof. Mortel:
Medieval fortifications of York, UK (7)
Prof. Mortel:
Medieval fortifications of York, UK (8)
Prof. Mortel:
Medieval fortifications of York, UK (9)
Prof. Mortel:
Medieval fortifications of York, UK (10)
Prof. Mortel:
Medieval fortifications of York, UK (1)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (6)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (7)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (8)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (9)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (10)
Prof. Mortel:
Part of medieval walls of York, UK (2)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (11)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (12)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (1)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (2)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (3)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (4)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100 (5)
Prof. Mortel:
Ruins of St. Leonard's Hospital in York, ca. 1100
Prof. Mortel:
Spring flowers in York, UK (2)
Prof. Mortel:
Spring flowers in York, UK (3)
Prof. Mortel:
Spring flowers in York, UK (1)
Prof. Mortel:
Part of medieval walls of York, UK (3)
Prof. Mortel:
Part of medieval walls of York, UK (4)
Prof. Mortel:
Part of medieval walls of York, UK (1)
