He was born as the son of Prince Franz de Paula of Liechtenstein (1802-1887) and his wife, Countess Julia Potocka.

He resigned the diplomatic service in 1873 and was transferred to the military reserves the following year, holding the rank of first lieutenant.

An opponent of liberalism that dominated the politics of Cisleithania after the 1867 December Constitution, Prince Aloys joined the conservative Catholic People's Association in 1874.

In 1912 he was appointed to the House of Lords (Herrenhaus) but progressively withdrew from public life due to ill health since 1916.

[citation needed] His family initially refused to approve the union on the grounds of inequality of birth, but later treated the marriage as equal, while the princess was largely accepted in Vienna.

[4][5] They had four daughters:[6] Their children were: Louis married secondly in Vienna on 20 May 1890 Johanna Elisabeth Maria von Klinkosch (Vienna, 13 August 1849 – Baden bei Wien, 31 January 1925), daughter of the master silversmith Josef Carl Ritter von Klinkosch (1822-1888) and his wife, Elisabeth Johanna Caroline Swoboda (1830-1910), without issue.