Born into a
Protestant family from
Sainte-Foy-la-Grande (
Gironde), his father was a
pastor and would later become a navy
chaplain. He got his start in the navy in September 1914 as a
seaman on the
Duguay-Trouin. He was promoted boatswain's mate (
maître de manœuvre) aboard the armoured cruiser ''Jeanne-d'Arc
in March 1915. He entered the École navale in September of that same year and left as a midshipman (aspirant
) in April 1916. He then embarked on the destroyer Aspirant-Herber'' in the
Mediterranean Sea. Having become
ensign first-class in April 1918, Jaujard found himself aboard the
Condorcet and the
Pothuau that same year, and on the
Lorraine the next. Then, in 1920, he served on the armoured cruiser
Montcalm, where he was noticed by Admiral Jules-Théophile Docteur. After becoming a
navy lieutenant in January 1921, he belonged to the navy's Far East divisional general staff under
François Darlan, who took him along as first mate on an
aviso that functioned as a
piloting school, named the
Chamois (1922–1923). He thereafter embarked on the
Ancre (1924) and was then sent to the general staff of the
maritime prefect of
Rochefort, embarking once again on the
battleship Lorraine in December 1925, this time as officer in charge of ship's movements (
officier de manœuvre). In 1926, he commanded the
oil tanker Var in the Mediterranean, and then became officer in charge of ship's movements on the ''Jeanne-d'Arc
, and next on the Edgar-Quinet
, always under Darlan (1927–1928), before embarking as executive officer on the torpedo boat Boulonnais'' in 1929. Having become corvette captain in 1931 and being assigned as deputy commander of the cruiser
Foch at
Brest, Jaujard commanded the torpedo boat
Fortuné of the Mediterranean squadron in 1933–1934, and in 1935 supervised work at the new
École navale campus in Brest. He was then named head of internal and security service on the battleship
Dunkerque and his work aboard ship was officially deemed satisfactory. Having become frigate captain in 1937, he commanded the destroyer
Vauquelin in the Mediterranean and then became first mate on the cruiser
Algérie in 1940. He then got himself noticed at the time of
Opération Vado (which involved bombarding the port at
Genoa) and was thus cited for his
sang-froid (roughly, calmness in the face of danger) and his tactical skill. After becoming captain (
"capitaine de vaisseau") in July 1941, Jaujard was first second-in-command on the general staff of Southern Maritime Forces at Algiers. In January 1943, he was commanding the cruiser
Georges Leygues in the
Free French forces. The German auxiliary cruiser
Portland was sunk on 13 April 1943 in the
South Atlantic Ocean as it was trying to run the
Allied blockade. By January 1944, Jaujard was commanding the navy at Algiers. By March of the same year, he had risen to rear admiral (
contre-amiral), and two months later, he was commanding the IV Cruiser Division, and he took part in the
Normandy landings on
D-Day (6 June 1944), successfully bombarding the
German positions at
Port-en-Bessin. In August 1944, he likewise took part in
Operation Dragoon, the Allied invasion of
Provence on the fifteenth of that month. While in command of the so-called Flank Force, a unit that brought together cruisers and
fighter aircraft, he supported Allied armies' progress on the
Italian coast. After World War II, in whose wake he reached the rank of
vice admiral in April 1946, he held the position of Major General of the Navy (a job title rather than a rank). In 1947, he commanded the
Richelieu group and the intervention force. He was "
NATO Admiral — Western Europe" in 1948, and then "Admiral — Central Europe" in 1951. He took the rank and title of squadron vice admiral in September 1952. He was highly esteemed by
Dwight D. Eisenhower. In 1954, he was named a titular member of the Armed Forces High Council. Jaujard was transferred to the "second section" (for French officers no longer on active duty, but still kept at the armed forces minister's disposal should they be needed) in April 1956. He died on 25 January 1977 in Toulon. ==Honours==