In 1613 he appeared with the emperor Matthias before the diet of Ratisbon as the advocate of the introduction into Germany of the Gregorian calendar; but the attempt was for the time frustrated by anti-papal prejudice.
He turned aside for a few months from his Political Economy during the winter of the Irish famine 0846-1847)to advocate the creation of peasantproprietorships as a remedy for distress and disorder in Ireland.
He is credited with having brought about a reduction of the quantity of silver in the smaller coins; he was the author of the Tariff Act of 1857 and of the bonded-warehouse system, and was one of the first to advocate civil service reform.
There were also an admiralty advocate and an admiralty proctor.
Its two foremost leaders were Doctor Trumbic and Mr. Supilo (two of the makers of the Resolution of Fiume) and it also included Doctor Hinkovic (known as the chief advocate in the Zagreb treason trial), Ivan Mestrovic the sculptor, the Slovene deputies Gregorin and Trinajstic, the Bosnian Serb deputies Stojanovic, SrSkic and Vasiljevic, publicists of repute such as Marjanovic and Banjanin, and prominent representatives of the Yugoslav colonies in North and South America, such as the scientist Pupin and the shipping magnate Baburica.
The name of Barere de Vieuzac, by which he continued to call himself long after the renunciation of feudal rights on the famous 4th of August, was assumed from a small fief belonging to his father, a lawyer at Vieuzac. He began to practise as an advocate at the parlement of Toulouse in 1770, and soon earned a considerable reputation as an orator; while his brilliant and flowing style as a writer of essays led to his election as a member of the Academy of Floral Games of Toulouse in 1788.
After the conversion of the king to Roman Catholicism, d'Aubigne remained true to the Huguenot cause, and a fearless advocate of the Huguenot interests.
He certainly was no mere advocate of orthodoxy; he as certainly was no mere victim of terror at scepticism; least of all was he a freethinker in disguise.
The king's advocate led the bar of his courts, and before the privy council took precedence of the attorney-general.
He sided with President Jackson on the question of nullification; was an efficient supporter of President Polk's administration during the Mexican War; and was an ardent advocate of slavery extension into the Territories, but when the Compromise of 1850 had been agreed upon he became its staunch supporter as a Union Democrat, and on that issue was elected governor of Georgia by a large majority.