The last of the original members of the wartime SAS left nearly £2million to his family, records reveal.

Major Mike Sadler, who died aged 103 at the start of last year, joined the elite Special Air Service after it was formed by David Stirling in 1941.

He took part in night-time raids against Axis airfields in Libya before being parachuted into Nazi-occupied France following the D-Day Normandy landings in 1944.

He was awarded the Military Cross for his heroics, later served in MI6 and even had a piece of the Antarctic named after him.

In 2018, he was further recognised with France's highest honour - the Legion d'honneur.

He was portrayed by Tom Glynn-Carney in the first series of hit BBC show SAS Rogue Heroes, which is an adaptation of the book of the same name by historian Ben Macintyre.  

Major Sadler, who was not depicted in this year's second series of Rogue Heroes, spent his later years at a retirement home near Cambridge and was survived by his daughter Sally.  

Now, probate records recently made available online show that he left an estate worth just over £1.8million to her and his brother-in-law.

Descendants of his brother-in-law were also listed as beneficiaries.  

After liabilities of £5,559 were deducted, Major Sadler's estate amounted to £1,805,328. 

Major Sadler's wife Pat, who he married in 1958, passed away in 2001.

The late soldier left school in 1937 to work on a farm in Southern Rhodesia, which is now Zimbabwe.

After war broke out in 1939, Major Sadler joined the Rhodesian Army artillery unit.

By 1941 he had been made a sergeant but ended up being demoted when he refused a commanding officer's order for his men to wear boots instead of sand shoes when sleeping.

He then met a member of the Long Range Desert Group, a reconnaissance unit based in the North African desert.

The soldier persuaded him to join and quickly took up the role of navigator. Soon, he was in charge of navigation for both the LRDG and SAS.

In December 1941, Major Sadler was part of the first successful SAS raid - on Wadi Tamet airfield - where a team of six men ruined 24 aircraft and a fuel dump.

This was led by Lieutenant Blair 'Paddy' Mayne, a former Irish international rugby star who would become one of Britain's most decorated soldiers as commander of the SAS after Stirling was captured.

Major Sadler fought with the SAS in Italy and France following his time in the desert war, before setting up the SAS intelligence unit.

On the night of July 26, 1942, Major Sadler, without headlights or a map, guided 18 jeeps filled with twin Vickers K machine guns along 70 miles of desert to within 200 feet of Sidi Haneish airfield.

The group then opened fire as they drove between planes, wrecking at least 37 aircraft. 

But one of the SAS jeep drivers was shot through the head during the attack and buried in the sand.

'I do remember the people who didn't survive, and who didn't have the chance to receive this great honour,' Major Sadler said after he was given the Legion d'honneur.

He was awarded the Military Medal for the Tamit and Sidi Haneish attacks.

Major Sadler was also one of the officers to follow Stirling on the last SAS operation during the desert war in January 1943.

This involved trying to cross the Tunisian desert to meet the British-American 1st Army but they were ambushed by a German unit.

Stirling was captured and would spend the rest of the Second World War as a prisoner of war in Colditz.

Major Sadler managed to escape along with another SAS soldier and an Arabic-speaking Frenchman.

He guided the group on a five-day, 100-mile trek, without a map, or any food provisions, to link up with the 1st Army.

American war correspondent A J Liebling witnessed Mr Sadler as he arrived from the desert, and wrote: 'The eyes of this fellow were round and sky blue and his hair and whiskers were very fair.

'His beard began well under his chin, giving him the air of an emaciated and slightly dotty Paul Verlaine.'

On August 7, 1944, Major Sadler was dropped by parachute into the Loire as part of Operation Houndsworth.

The aim was to reach SAS squadrons behind the lines and help destroy fuel depots, encourage local resistance, and prevent Panzer divisions heading north.

By this time Hitler had given instructions for any captured parachutists to be executed.

Germans struck the two-jeep convoy with Major Sadler returning fire, allowing the other jeep to flee before escaping himself. He was later awarded the Military Cross for gallantry.

When the SAS were disbanded at the end of the war, Major Sadler left the army and signed up with the Falkland Islands dependency's Antarctic survey.

He was awarded the Polar Medal for his efforts.

The soldier then spent two years working at the American embassy in London before being recruited by MI6. 

He said little about his time with the Secret Intelligence Service, bar the fact that it allowed him to indulge his love of sailing.

He retired in 1984 and spent his later years at a retirement home near Cambridge.

After the war, Major Sadler married Anne Hetherington, but the union was dissolved after two years.

In 1958, he married Pat Benson and the couple had daughter Sally together.