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.
History of the Knights Templar
Though initially an Order of poor monks, the official papal sanction made the Knights Templar a charity across Europe. Further the resources came in when members joined the Order, as they had to take oaths of poverty, and therefore often donated large amounts of their original cash or property to the Order. Additional revenue came from business dealings. Since the monks themselves were sworn to poverty, but had the strength of a large and trusted international infrastructure behind them, nobles would occasionally use them as a kind of bank or power of attorney. If a noble wished to join the Crusades, this might entail an absence of years from their home. So some nobles would place all of their wealth and businesses under the control of Templars, to safeguard it for them until their return. The Order's financial power became substantial, and the majority of the Order's infrastructure was devoted not to combat, but to economic pursuits.