Jan Willem Janssens, by Jan Willem Pieneman ,
ca 1820
Jan Willem Janssens (October 12 1762 -
May 23 1838) was a Dutch
soldier and statesman who served both as the governor-general
of the Cape Colony and Dutch East Indies.
Early life
Born in Nijmegen, he joined the army at the age of nine and rose through the ranks. By 1793,
at the start of the Napoleonic Wars, he held the rank of colonel, and was wounded in the
campaign.
Batavian Republic
The Dutch surrender in 1795 made way for the mostly peaceful establishment of the Batavian
Republic, a satellite state under Napoleon's growing empire. Colonel Janssens,
from 1795 to 1802, served mostly as an administrator within the new Batavian Army. He was appointed as the governor-general of
the Cape Colony upon its return to the Dutch by the British under the terms of the Treaty of
Amiens in 1802. Arriving in early 1803, he attempted to strengthen the defenses of the colony, but found resources
lacking, having few trained troops at his disposal and the political situation tenuous at best. During this time, he was promoted
to Lieutenant-General.
The start of the War of the Third Coalition marked another British
invasion of the Cape Colony. Janssens was under no impression that he had the ability to defeat the British force, led by
Lieutenant-General Sir David Baird, yet he mobilized his forces and engaged
the British on January 8, 1806, at the Battle of
Blaauwberg, near Cape Town. His force was routed and the Cape Colony was surrendered to
the British for the last time on January 18. Under the terms of the surrender, Janssens was
transported back to the Netherlands, arriving at the Hague on June 8, 1806.
By the time Janssens surrendered to the British, the war in Europe had ended with the Treaty of Pressburg. When he returned to the Netherlands, Napoleon had already installed his brother
Louis Bonaparte as the king of the newly formed Kingdom of Holland.
Kingdom of Holland and the French Empire
Louis Bonaparte named Janssens as the secretary-general of the Department of War upon his return. He held a series of
high-ranking administrative posts within the kingdom until the abdication of Louis Napoleon and the annexation of the Netherlands
by France in 1810. On November 11, 1810, he was appointed as the governor-general of the
territory formerly known as the Dutch East Indies before the annexation, replacing Herman Willem Daendels. He arrived in Batavia, Java on May 15 1811 and immediately involved himself in efforts to strengthen the
colony's defenses. Java benefited from a larger amount of both Dutch and French troops, as well as better defenses, compared to
the Cape Colony. However, the British invasion fleet arrived shortly thereafter, on July 30, led
by Sir Samuel Auchmuty.
Janssens mounted a defense that centered around the existing fortifications, namely Meester Cornelis. However, the
French soldiers under his command lacked well-trained officers and as the British laid siege to the fortress, Janssens personally
led a futile defense and was forced to retreat to Buitenzorg (later the place of residence of the
British governor-general, Sir Stamford Raffles. A large number of French soldiers were
captured during the retreat and ensuing pursuit and Janssens was forced to surrender on September
18, 1811. He was imprisoned in Britain until November 12, 1812, when he was
repatriated to the Netherlands.
He was involved in some minor engagements in the ensuing years, until he resigned his post in the French Army on
April 9, 1814.
Post-Napoleonic War career
Janssens was involved with the nascent Kingdom of the Netherlands as the
provisional Commissary-General of War, but he resigned his post after his request to be posted once again as the governor-general
of the Dutch East Indies was denied. He resigned from active duty on May 22, 1815.
He died as a highly decorated veteran in the Hague, aged 75.
Reference
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