Archduke Frederick Ferdinand of Austria

Archduke Friedrich Ferdinand Leopold of Austria (German: Erzherzog Friedrich Ferdinand Leopold von Österreich) (14 May 1821 – 5 October 1847) was a member of the House of Habsburg and Commander-in-Chief of the Austrian Navy.

Friedrich was the third son of Field Marshal Archduke Charles of Austria (1771–1847) and Princess Henrietta of Nassau-Weilburg (1797–1829). He never married and did not leave issue.

Born in Vienna, Friedrich joined the Imperial Austrian Navy in 1837 at the age of sixteen. He threw himself into this career with much zeal and quickly rose to command a ship, sailing to the orient for the first time in 1839.

During the Oriental Crisis of 1840 between Egypt and the Ottoman Empire, Friedrich fought in the campaign against Muhammad Ali after the Convention of London. He served with the Austrian fleet off the Levantine coast as commander of the ship Guerriera.

In that convention, the United Kingdom, Austria, Prussia, and Russia had offered Muhammad Ali hereditary rule of Egypt as part of the Ottoman Empire if he withdrew from the Syrian hinterland and the coast of Mount Lebanon. Muhammad Ali hesitated until British naval forces moved against Syria and Alexandria. After the British and Austrian navies blockaded the Nile delta coastline, shelled Beirut (on September 11, 1840), and after Acre had surrendered (on November 3, 1840), Muhammad Ali agreed to the terms of the Convention on November 27, 1840.

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