He also pleaded guilty to conspiracy to transfer criminal property and one count of transferring criminal property, at Oxford Crown Court in April 2024.
Frederick Sines, 36, also known as Frederick Doe, of Winkfield, Windsor, Berkshire, and Bora Guccuk, 41, from west London, each deny one count of conspiracy to transfer criminal property.
Prosecutor Julian Christopher KC said within days of the raid, two men were using "car" as a codeword for the stolen gold and contact was made with a Hatton Garden jeweller.
"The men, five of them it appears, drove through locked wooden gates into the grounds of Blenheim Palace shortly before 5am in two stolen vehicles, an Isuzu truck and a VW Golf.
Sledgehammer-wielding thieves who smashed their way into Blenheim Palace managed to steal a £2.8m gold toilet in just five minutes, a court has heard.
