Father-to-be and future King of England Prince William turns 31 on Friday.

If you’re wondering what to buy William Arthur Philip Louis Windsor for this milestone, bear in mind he was granted his own personalised coat of arms for his 18th – so a Lynx travel set is not going to cut the mustard.

prince william toddler

Prince William aged 14 months

The Prince, who married university sweetheart Kate Middleton in a ceremony at Westminster two years ago, is the eldest son of Prince Charles and the late Diana, Princess of Wales.

The couple’s first child, due in July, will be delivered at St Mary’s Hospital in Paddington, where William was also born.

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  • The Duke Of Cambridge And Prince Harry Visit Tedworth House

    TIDWORTH, ENGLAND - MAY 20: The Duke of Cambridge, Prince William (R) meets a young child during his visit Tedworth House to officially open the charity's Tedworth House recovery centre on May 20, 2013 in Tidworth, England. During their visit the two Royal Princes met with wounded veterans, serving personnel, and their families. Tedworth House in Wiltshire is one of four new units in England which will offer respite care and rehabilitation to injured and sick service personnel, veterans and their families. (Photo by Mark Richards - WPA Pool / Getty Images)

  • Royalty - Duke and Duchess of York Wedding - Westminster Abbey

    A yawn from Prince William, the 3 year-old son of the Prince and Princess of Wales, during the wedding ceremony of Sarah Ferguson and the Duke of York at Westminster Abbey. Seated next to the young Prince is his cousin, 6 year-old Laura Fellowes.

  • Royalty - St. David's Service - Llandaff Cathedral

    Prince William and his mother, the Princess of Wales, meet the crowds as they leave Llandaff Cathedral after the St. David's service.

  • william retro

    The Queen Mother, the Prince of Wales, a young Prince William and Princess Margaret at Buckingham Palace, London for Trooping the Colour in circa June 1984.Photo. Anwar Hussein

  • Royalty - Prince William - Kensington Palace

    Prince William at Kensington Palace, London.

  • A young Prince William leaves St Mary's hospital - London

    A young Prince William leaves St Mary's hospital in London on September 16, 1984 after seeing his newly born brother, Prince Harry.Anwar Hussein/EMPICS Entertainment

  • william retro

    The Prince of Wales with a young Prince William on his second Birthday, in the gardens of Kensington Palace, June 1984.Photo. Anwar Hussein

  • Britain's Prince William and his wife Ca

    Britain's Prince William and his wife Catherine, Duchess of Cambridge, hold a teddy bear which will go into care packages for militar children as they attend the Mission Serve: Hiring Our Heroes event in Culver City, California July 10, 2011. Prince William and his wife Catherine are on a royal visit to California from July 8 to July 10. AFP PHOTO / Pool / Francine ORR (Photo credit should read FRANCINE ORR/AFP/Getty Images)

  • The Duke And Duchess Of Cambridge Canadian And North American Tour - Quebec

    QUEBEC CITY, QC - JULY 03: Prince William, Duke of Cambridge visits a drop in centre for homeless and young people on July 3, 2011 in Quebec, Canada. The newly married Royal Couple are on the fourth day of their first joint overseas tour. The 12 day visit to North America will take in some of the more remote areas of the country such as Prince Edward Island, Yellowknife and Calgary. The Royal couple started off their tour by joining millions of Canadians in taking part in Canada Day celebrations which mark Canada's 144th Birthday. (Photo by Arthur Edwards - Pool / Getty Images)

  • Catherine, the Duchess of Cambridge look

    Catherine, the Duchess of Cambridge looks on as British Prince William plays street hockey during a event at the Somba K'e Civic Plaza in Yellowknife, Northwest Territories on their nine-day tour in Canada July 5, 2011. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)

  • Britain's Prince William kisses his wife

    Britain's Prince William kisses his wife Kate, Duchess of Cambridge, on the balcony of Buckingham Palace, after the wedding service, on April 29, 2011, in London. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

  • Prince William And Harry Visit Lesotho - Day 2

    SEMONKONG, LESOTHO - JUNE 17: Prince Harry and Prince William put gloves on a young boy during a visit to a child education centre on June 17, 2010 in Semonkong, Lesotho. The two Princes are on a joint trip to Africa which takes in Botswana, Lesotho and finally South Africa. During that time they will visit a number of projects supported by their respective charities Sentebale (Prince Harry) and Tusk Trust (Prince William). The trip will culminate with the brothers watching the England vs Algeria World Cup match in Cape Town. (Photo by Chris Jackson/Getty Images)

  • Britain's Prince William (R) poses for a

    Britain's Prince William (R) poses for a photograph taken on a mobile phone by Dylan Harris during a visit to a children's hospital in Auckland, 05 July 2005. The Prince is on a 11-day tour of New Zealand, his first official tour of a foreign country by himself. AFP PHOTO (Photo credit should read MARK BAKER/AFP/Getty Images)

  • Portraits of H.R.H. Prince Harry

    ETON, ENGLAND - MARCH: The youngest son of the Prince of Wales, Prince Harry and his brother Prince William (far right) take part in the Wall Game between Dr Gailey's Old Boys and the Mixed Wall in March, 2003 at Eton College, Eton in England. Prince Harry will finish his studies at Eton College at the end of June. (Photo by Kirsty Wigglesworth-Pool/Getty Images)

  • A undated, recent handout photo of Brita

    A undated, recent handout photo of Britain's Prince William and Alejandro Heredia, 6, playing at Tortel Nursery during their lunch break in the village of Tortel, Southern Chile during his Raleigh International expedition. AFP PHOTO POOL/TOBY MELVILLE (Photo credit should read TOBY MELVILLE/AFP/Getty Images)

  • Prince William visits Australia - Day One

    SYDNEY, AUSTRALIA - JANUARY 19: Prince William reads a story to children at the Redfern Community centre on January 19, 2010 just outside Sydney in Australia. Prince William flew in from New Zealand for an unofficial three day visit, this is the second visit by the second-in-line to the throne, having been here at the age of 9 months with his parents in 1983. (Photo by John Stillwell-Pool/Getty Images)

  • Britain's Prince William (L) gives 11 ye

    Britain's Prince William (L) gives 11 year old Lorna Bradnock (R) a high five during his visit to Kingshurst Sporting FC football grounds, West Midlands, on May 11, 2009. Prince William, President of The Football Association, met young players, coaches and staff participating in The FA's Charter Standard programme during a visit to the club.The Charter Standard Scheme is a best practice guide that sets standards of coaching, administration and child protection for all clubs outside the Football League and Premier League. AFP PHOTO/CARL DE SOUZA/WPA POOL (Photo credit should read CARL DE SOUZA/AFP/Getty Images)

  • Royalty - Birth of Prince William - St Mary's Hospital, London

    A happy crowd show their joy for the Prince of Wales, who is outside St Mary's Hospital, Paddington, London, after he became a dad for the first time.

  • BIRTH OF PRINCE HARRY : 1984

    PA News 16/9/84: Prince William waves to the crowd as he leaves the Lindo Wing of St. Mary's Hospital, London, with his nanny Barbara Barnes, after spending approximately 20 minutes visiting his mother the Princess of Wales and his new-born baby brother Prince Harry. His father, the Prince of Wales, stayed for several hours.

  • Royalty - Prince William - Kensington Palace

    A baby Prince William with his mother, The Princess of Wales, at home in Kensington Palace, London

  • Royalty - Prince William - Kensington Palace

    A baby Prince William playing at home in Kensington Palace, London

  • PA NEWS PHOTO 22/12/82 THE PRINCESS OF WALES WITH BABY PRINCE WILLIAM AT KENSINGTON PALACE...

    PA NEWS PHOTO 22/12/82 THE PRINCESS OF WALES WITH BABY PRINCE WILLIAM AT KENSINGTON PALACE

  • william retro

    The Prince and Princess of Wales with baby Prince William in Kensington Palace in 1983.Photo. Anwar Hussein

  • Royalty - Prince William - Auckland, New Zealand

    The Prince and Princess of Wales amuse baby Prince William on a rug in the grounds of Government House in Auckland, New Zealand. William is the first royal baby to go on an official tour. The Princess insisted that the 9 month old Prince accompany them on their 6 week tour of Australia and New Zealand.

  • Duchess of Cambridge expecting

    The Duke and Duchess of Cambridge leave the King Edward VII hospital in London where the Duchess of Cambridge had been admitted with severe morning sickness.

  • Scott-Amundsen Centenary Race reception

    The Duke of Cambridge talks to Vic Vicary, who holds his three week old son Hugo Eric Scott Vicary, and his wife Hanna during a reception to celebrate the Scott-Amundsen Centenary Race to the South Pole at Goldsmiths Hall in the City of London.

  • william retro

    The Prince and Princess of Wales with baby Prince William at Kensington Palace at Christmas 1982.Photo. Anwar Hussein

  • Diana, Princess of Wales retrospective

    Prince Charles, Prince of Wales and Diana, Princess of Wales follow Prince William out to Kensington Palace gardens for a photocall in December 1983.

  • ROYAL William interior 1

    Prince William, older son of Britain's Prince of Wales, holds his first godson, Prince Konstantine Alexios, son of Crown Prince and Princess Pavlos, at the Greek Cathedral in Central London, watched by Prince Dimitri of Yugoslavia (right). * Prince William is one of eight godparents drawn from friends of the family and the European Monarchy.

  • Royalty - Prince Harry at Wetherby School - Notting Hill, London

    Prince Harry (left), five years old, joins his brother Prince William, seven, on his first day at the Wetherby School in Notting Hill, West London. The young princes are pictured with their mother, the Princess of Wales (left), and the school Headmistress, Frederika Blair-Turner.