6 - Nikola IV Zrinski (Hungarian: Szigeti Zrínyi Miklós; 1508–1566), Ban of Croatia from 1542 until 1556.
Source: Leónidasz a végvidéken. Zrínyi Miklós (1508-1566) by Varga Szabolcs
Note: I've posted this one before, but this one's in higher quality.
Source:
https://docplayer.hu/222752167-Tanul...-szablyak.html
The sabre resides at the Museum of Fine Arts in Vienna (Kunsthistorisches Museum Wien), Austria. According to Prof. dr. Major General József Padányi, the likely year - with the dragon coat of arms of the Zrínyis on the grip caps - is
1563. At that time, Miklós Zrínyi was at the height of his power, and at the coronation of Maximilian II (King of Hungary September 8, 1563 - 12 October 1576), the saber could have been a gift from Zrínyi, who carried the state apple, as a souvenir. A painting was also made of this event, proving the above.
The previous posted source dates the painting to 1541-42. So, it's a bit confusing.