The two main devices (symbols) in the Landesduke blazon are the cross moline and fretty. The main tincture (color) is azure.
The bright, strong blue color in Heraldry is known in English as azure, and similarly in other European languages – azul in Spanish, azurro in Italian and azur in French. The word has its roots in the Arabic word lazura, also the source of the name of the precious stone lapis lazuli 1A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Azure. Despite this, those heralds who liked to associate colours with jewels chose instead to describe blue as Sapphire. According to Wade, the use of this colour symbolises “Loyalty and Truth” 2The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P36.
No other symbol appearing in heraldry is subject to as much variation as the cross 3Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 47. Mediaeval Europe was a deeply religious and Christian and many of the nobility wanted to show their devotion by adopting the symbol of the cross as part of the arms. Since no two arms could be identical there arose many variants of the cross, typically involving patterning along the edges 4Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P67, or fanciful, decorative endings to the arms of the cross 5A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P128. The cross moline is typical of these whereby each arm of the cross expands and curves outwards, reminscent of the fer-de-moline from which it gets its name. These cross variations are probably largely for decorative effect, and to differentiate the arms from similar ones and hence their significance is that of the Christian cross itself.
Fretty is a very pleasing patterning of the field whereby it is split into diamond shapes by overlapping and interwoven diagonal bands, where the background and the band colours may be any of the heraldic tinctures. 6A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Fret. The family CAVE, from Kent are blessed with the simple arms of Azure, fretty or. Ancient writers, such as Guillim believed that the pattern represented a net and hence symbolised those skilled in the art of “persuasion”! 7A Display of Heraldry, J. Guillim, Blome, London, 1679, P234