[2][3] Alois attended the Liechtenstein Grammar School in Ebenholz (Vaduz) and then the Royal Military Academy Sandhurst in the United Kingdom.

He served in the Coldstream Guards in Hong Kong and London for six months before entering the University of Salzburg, from which he earned a master's degree in jurisprudence in 1993.

[12] Alois is set to inherit an extensive art collection, much of which is displayed for the public at the Liechtenstein Museum in Vienna.

As of July 2022, his father's net worth was estimated by Bloomberg Billionaires Index around US$6.20 billion, making him the 380th richest person on earth.

[citation needed] On 3 July 1993 at St. Florin's Cathedral in Vaduz, Alois married Duchess Sophie in Bavaria, now also Hereditary Princess of Liechtenstein and Countess of Rietberg.