Knights Templar in England
An inventory by Geoffrey Fitz Stephen reveals that by 1185, the Order of the Knights Templar had extensive holdings in London, Hertfordshire, Essex, Kent, Warwickshire, Worcestershire, Salop, Oxfordshire, Cornwall, Lincolnshire and Yorkshire. The involvement of Templars in financial matters is highlighted by Walter of Coventry's story of Gilbert de Ogrestan, the Knight Templar accused of embezzling taxes collected in the Saladin tithe of 1188. He was severely punished by his contemporary Master.
Knights Templar Seal
The Grand Masters of the Knights Templar during the later 12th and the 13th century used a double-sided seal which showed a representation of The Dome of the Rock (or a circular dome of the Church of the Holy Sepulchre) on one side, and the Order's symbol of two knights on one horse on the other side. 
This design is first attested as in use by Bertrand de Blanquefort, the order's sixth Grand Master, in 1158, forty years after its foundation, and it remained in use until the dissolution of the order in 1312.