Arsen Sečujac

Arsen Sečujac (also Arsenius Baron Seczujacz of Heldenfeld, in some sources Szecsujacz or Szeczujatz; ?, 1720 – 13 January 1814) was a Croatian general in the Habsburg Monarchy imperial army service. He earned the rank of major general at the very end of his military career and was awarded the Knight's Cross of the Military Order of Maria Theresa, the highest Monarchy decoration, in 1762.

Biography
He was born in eastern, Syrmian part of the Slavonian Military Frontier (where the Slavonian-Petrovaradinian Military Infantry Regiment was established later, in 1747), in a family of Serbian descent. His father Đuro (George) was captain, and the two of his brothers also served in the military.

Sečujac joined the army in 1741 as a cadet in Gradiskaner infantry unit of the Slavonian Military Frontier and fought in many battles during several wars (War of the Austrian Succession, Seven Years' War, War of the Bavarian Succession). During the first years of the Seven Years' War he was major and in 1762 he was awarded the Knight's Cross of the Order of Maria Theresa and promoted to lieutenant colonel.

Having succeeded the noble status from his father, who had received the ennobling predicate "von Heldenfeld" (Heldenfeldski), Sečujac was elevated to baron on 29 December 1767. During his lifetime, he served in several garrisons or military bases, ending his career as commanding officer of the 66th Slavonian-Brod Military Frontier Infantry Regiment, a unit which he took over as colonel in 1777.

At the very end of his military career, on 24 February 1783 he was promoted to the rank of major general, and soon after that, on 10 April 1783 retired. He died at the age of 93 in Vienna in 1814.