"He used to stay in the palace because he had a lover there. Due to its location it was often visited by high-ranking SS officers who treated it like a brothel."
He convinced Inge to keep a watchful eye over the treasure, who happily obliged because "she was in love with the handsome officer in a black SS uniform".
"They were like gods," Furmaniak continued. "She believed that she would have to stay there for a year, maybe two, then it would all be over.
"There was a two-month period in 1945 when she had to hide in the forest from the Russians. But when she got back, the area had not been disturbed.
"If they had dug a hole, they would have taken what they wanted and then left the hole. We have seen this in history many times in Poland."
The excavation is set to begin next week Credit: Fot.Mariusz Przygoda/Silesian Bridge Foundation The pencil-written diary entries are believed to be written by a high-ranking SS officer Credit: Fot.Mariusz Przygoda/Silesian Bridge Foundation Around 600,000 pieces of artwork were stolen across Europe during Hitler's rule Credit: Getty - Contributor The non profit foundation want to use the diaries to help return the treasures to the rightful owners Credit: Fot.Mariusz Przygoda/Silesian Bridge Foundation The region eventually came under the control of the Russians at the end of the war, who ousted the German settlers amid the return of Poles who had taken refuge in Western Ukraine coming back.
Inge adapted her appearance and identity to conceal herself among the new population, even marrying a local man, while watching over the treasure until her death 60 years later.
The Minkowskie palace, built by Prussian general Friedrich Wilhelm von Seydlitz, was later a station for the Red Army and the Polish Army.
The historical building was later used as a local council office, a nursery and even a cinema, before the Silesian Bridge foundation took a long-term lease on the property.
"The recovery of lost works of art and their return to their rightful owners could become a catalyst for changes aimed to bring unity - not polarisation. This notion guides our mission," Furmaniak said.
The fascist regime stole around 600,000 pieces of prized artwork from across Europe, amounting to billions of pounds.
Many pieces remain missing - including the infamous priceless collection of amber panels, known as the Amber Room and nicknamed the ‘Eighth Wonder of the World’.
Estimated to be worth somewhere between £120-£240 million in modern day currency, the Russian artefact was looted by the Nazis and put on display back in Germany - before disappearing towards the end of the war.
Regarded as one of the greatest mysteries of the war, some obsessive treasure hunters have lost their lives searching for the Amber Room - which remains undiscovered.
The elusive 'Gold of Breslau' is also believed to be hidden with the gold Credit: Fot.Mariusz Przygoda/Silesian Bridge Foundation The Nazis were known for burying their valuables and secrets deep underground, and also used the subterranean systems (pictured) to travel through Credit: AP:Associated Press
Treasure hunters believe they've found the £250m Amber Room