By Geraldine Coughlan
BBC News, The Hague
Dutch officials and conservationists have reached a deal to save the tree that brought comfort to Anne Frank as she hid from the Nazis.
The state of the tree will be reviewed again in 15 years' time
The 150-year-old horse chestnut will be supported by a frame before the summer.
The Support Anne Frank Tree Foundation won a court injunction in November stopping the city of Amsterdam from cutting down the diseased tree.
Officials feared it could topple over and crash into the Anne Frank Museum, which gets a million visitors a year.
The city of Amsterdam, the museum, the tree's owner, the Netherlands' Trees Institute and the Support Anne Frank Tree Foundation agreed on the plan, which was worked out by a team of experts from several countries.
An Amsterdam judge granted the tree a temporary reprieve last year, after the city council ordered it to be chopped down.
Neighbours and supporters argued that, as a symbol of freedom, the tree was worth making extraordinary efforts to preserve.
Even for posterity, grafts have been taken from the chestnut and are being raised in a nursery to replace the old tree if it turns out it cannot be saved again in 15 years' time.