The painting measures 178 by 198 centimeters and is now housed at the Leopold Museum in Vienna.

This includes the Leopold Museum, which proposed the founding of an international tribunal for that very purpose.

The Leopold Museum said it would be bound by the tribunal's findings.

At the moment they belong to the Leopold Museum and the Austrian Government.

Early this month, the Leopold Museum was granted the last of the necessary city and state approvals and permits.

(Many of those works are now on view at the Leopold Museum in Vienna).

The families want restitution from the Leopold Museum in Vienna, which now owns them.

In 2001 the Leopold Museum was opened.

The apology was read out in a press conference before the opening of his exhibition at Vienna's Leopold Museum.

"The Leopold Museum and the Austrian Government would decide what to do," he said.