Prince Albert II of Monaco is auctioning off part of the luxury car collection started by his father Prince Rainier III, with vehicles by Bentley, Panhard and Porsche among those up for sale.

Forty vehicles will be available at an auction July 26 at Prince Albert’s car museum in Monaco. The cars are being sold due to a “comprehensive reorganisation” of the collection, auction house Artcurial Motorcars said in a press release.

The cars have no reserve price. A Mercedes 500 SEC, the personal car of Prince Rainier, is estimated to fetch between $19,000 and $31,000. Among the oldest cars is a 1913 Panhard X19, valued at between $31,000 and $44,000.