Hero Para's parents set to meet the Queen

Bob and Jem Wright will travel to the Permanent Joint Headquarters in Northwood, London, on Thursday, when the Queen will open a new building which includes conference rooms named after Cpl Wright.

Mr Wright said: "About a year ago I got an e-mail from a flight commander who told me what was happening in Joint Command Centre, that it was getting done up, and he asked if it would be OK to use Mark's name for some of the conference rooms.

"I said yes, of course, and he asked if I'd be prepared to come down, and then we just got an invitation card through.

"We felt over the moon. We'd prefer for him to be here, but we are very proud."

Mrs Wright added: "We're excited, we knew that they were going to name something after Mark, so it's really good to go down for the opening. We're just honoured that they called them after Mark."

An MoD spokeswoman said: "We have named a number of these rooms after service personnel whose memory we feel should be honoured in Permanent Joint Headquarters."

It is the latest in a string of honours for Cpl Wright, who was just 27 when he died trying to rescue fellow troops from a minefield in Helmand Province in 2006.

After his death, he was awarded the George Cross for gallantry.

In August last year, forces charity Erskine opened Mark Wright House, the UK's first army recovery centre, in Gilmerton. The Wrights joined army chief, General Sir Richard Dannatt, for the opening of the 12-bed block. In March, Mrs Wright was awarded the Elizabeth Cross, which is given to the next of kin of those killed in battle.

The Paratrooper's name also lives on at the Mark Wright Project Centre in Dalkeith, run by his parents to offer social, practical and emotional support to returning troops.

The Wrights will return to Edinburgh after their royal encounter in time for the homecoming parade for returning troops from 3 Rifles and 1 Scots.

The city-based troops arrived home last week after a six-month deployment in Afghanistan.

The Mark Wright Project is helping to support the families of many of the 30 soldiers who died during the tour. The charity has received pledges of accommodation, transport and food from local companies to help the families through the weekend.

The official homecoming parade begins at 10:30am on 8 May. Troops will march from Edinburgh Castle to Holyrood Palace, where they will be met by Princess Alexandra.