A service of thanksgiving is being held at Westminster Abbey for Lord Montagu at noon today.
The founder of the National Motor Museum in Beaulieu died last August. The memorial service is open to all.
Three more people have been arrested in connection with the murder of Pennie Davis.
Hampshire Police said they had detained a 28-year-old woman, a 29-year-old man and 46-year-old man on suspicion of assisting an offender.
The mother-of-five, 47, was stabbed to death as she tended to her horses in the New Forest on September 2.
The latest arrests bring the total number of people detained over the incident to eight
A man has appeared in court charged with the murder of mother-of-five Pennie Davis. Thirty-six-year-old Justin Robertson, of no fixed abode, will now appear at Winchester Crown Court on Wednesday (Sept 17.) Pennie Davis was found with multiple stab wounds at a field in Beaulieu where she was tending her horses. Mr Robertson spoke to confirm his name and date of birth.
A man charged at the weekend with murdering mother of five Pennie Davis, is due in court this morning.
The 47 year old was stabbed in a field at Beaulieu in the New Forest, as she fed her horses.
Justin Robertson, of no fixed address, will appear before magistrates in Southampton.
Detectives investigating the murder of Pennie Davis in the New Forest have this afternoon charged a man with murder following a joint decision with the Crown Prosecution Service.
Justin Robertson, 36, of no fixed abode, is accused of murdering Pennie on September 2. He will remain in custody and appear before Southampton Magistrates Court on Monday morning. Her family has been informed.
John Montague, Senior District Crown Prosecutor for the Crown Prosecution Service in Wessex, said: 'I have authorised Hampshire Constabulary to charge Justin Robertson with the murder of Penelope Davis, 47, from Blackfield, on 2 September.
'It is alleged that Mrs Davis was found killed when she was tending to her horses in a paddock near Leygreen Farm in Beaulieu. Her husband Peter Davis found her dead; she had sustained several stab wounds.
'I carefully reviewed all the available evidence provided to me by Hampshire Constabulary and in accordance with the Code for Crown Prosecutors I am satisfied that there is sufficient evidence for a realistic prospect of conviction and it is in the public interest to prosecute Justin Robertson with the murder of Penelope Davis.
'Proceedings are now ongoing and the defendants have the right to a fair trial. It is very important that there should be no reporting, commentary or sharing of information online which could in any way prejudice these proceedings.'
The National Motor Museum in Beaulieu is hoping to set a new world record later for the longest ever line of toy cars. More than 15,000 miniature cars will be lined up nose to tail along a two-kilometre route around the museum and its grounds.
Several celebrities have donated models to the attempt, including racing driver Sir Stirling Moss.
Andy Ollerenshaw, from Beaulieu's Events team, said: "*It will be an exciting event to come and watch on the day. *
"Children who bring two or more toy cars today will get half-price admission to Beaulieu. To qualify, donated cars can be of any type designed to be played with by hand including cars, lorries, tractors and quad bikes but not large enough to sit on."**
For the first time in 50 years, Sir Malcolm Campbell's iconic vehicle in which he set two world speed records, has revved her engine!
The Blue Bird was fired up at Beaulieu in the New Forest having undergone a complete rebuild.
It already houses the world's largest collection of James Bond cars. Today the National Motor Museum at Beaulieu in the New Forest hosted two James Bond stars - Honor Blackman who played Pussy Galore in Goldfinger, and Richard Kiel who was Jaws in two movies.
They were the guests of honour at the Bond in Motion exhibition, which will end its run there in January. Honor Blackman spoke to Meridian and explained how even now she's asked to speak her lines from Goldfinger from 1964.
Now, it's the largest collection of Bond vehicles ever assembled under one roof. And it's proved so popular the exhibition at the National Motor Museum in Beaulieu has been extended to coincide with the DVD release of Skyfall.
Martin Dowse cast his Golden Eye over the collection and spoke to Tim Egerton from The National Motor Museum