Carol I of Romania vs Hans-Adam II of Liechtenstein

Carol of Hohenzollern-Sigmaringen was elected Prince of Romania on April 20, 1866, following the abdication of Alexandru Ioan Cuza. He arrived in Romania in May and was sworn in, beginning the Hohenzollern dynasty's rule over the country.

Carol I initiated the construction of Romania's first major railway line, connecting Bucharest to Giurgiu. This project expanded into a national network, modernizing transportation and facilitating economic development.

Carol I led Romanian forces alongside the Russian army against the Ottoman Empire in the Russo-Turkish War. The Romanian army played a key role in the Siege of Plevna, and the war resulted in Romania's full independence from Ottoman suzerainty.

Carol I's diplomats secured international recognition of Romania's independence at the Congress of Berlin. The treaty also forced Romania to cede southern Bessarabia to Russia in exchange for the Dobruja region, a controversial territorial swap.

On March 26, 1881, Romania was proclaimed a kingdom, and Carol I was crowned as its first king. This elevated Romania's international status and solidified its independence from the Ottoman Empire, which had been recognized in 1878.

Hans-Adam II became Prince of Liechtenstein on November 13, 1989, following the death of his father, Prince Franz Joseph II. He inherited a constitutional monarchy with significant powers, including the ability to veto legislation and dissolve parliament.

Under Hans-Adam II's reign, Liechtenstein transformed into a major financial center, leveraging low taxes and banking secrecy. He oversaw the modernization of the economy, including accession to the European Economic Area in 1995, boosting prosperity but also attracting international scrutiny over tax evasion.

Hans-Adam II pushed through a constitutional reform in a 2003 referendum, expanding his powers to include the right to dismiss the government, veto laws, and appoint judges. The reform was controversial, with critics calling it a step toward absolutism, but it passed with 64% support.

On August 15, 2004, Hans-Adam II transferred the day-to-day executive powers to his son, Hereditary Prince Alois, while retaining the role of head of state. This move was part of a planned succession and allowed Alois to gain experience in governance.