[MoreThanThree]

Maximilian:
"Maximilian I (22 March 1459 – 12 January 1519), the son of Frederick III, Holy Roman Emperor, and Eleanor of Portugal, was King of the Romans (also known as King of the Germans) from 1486 and Holy Roman Emperor from 1508 until his death, though he was never in fact crowned by the Pope, the journey to Rome always being too risky. He had ruled jointly with his father for the last ten years of his father's reign, from c. 1483. He expanded the influence of the House of Habsburg through war and his marriage in 1477 to Mary of Burgundy, the heiress to the Duchy of Burgundy, but he also lost the Austrian territories in today's Switzerland to the Swiss Confederacy.

Through marriage of his son Philip the Handsome to eventual queen Joanna of Castile in 1498, Maximilian helped to establish the Habsburg dynasty in Spain which allowed his grandson Charles to hold the thrones of both Castile and Aragon. Since his father Philip died in 1506, Charles succeeded Maximilian as Holy Roman Emperor in 1519, and thus ruled both the Holy Roman Empire and the Spanish Empire simultaneously."

https://en.wikipedia.org/wiki/Maximilian...an_Emperor

Edit:
Lugalentsi
"There are different theories regarding the meaning of the title lugal in 3rd millennium Sumer. Some scholars believe that a ruler of an individual city-state was usually called ensi, and a ruler that headed a confederacy or larger dominion composed of several cities, perhaps even the whole of Sumer, was a lugal. The functions of such a lugal would include certain ceremonial and cultic activities, arbitration in border disputes, military defence against external enemies, and once the lugal has died, the eldest son must take over. Interestingly, the ensis of Lagash would sometimes refer to the city's patron deity, Ningirsu, as their lugal ("master"). All of the above is connected to the possibly priestly or sacral character of the titles ensi and especially en (the latter term continuing to designate priests in subsequent times). Other scholars consider ensi, en and lugal to have been merely three local designations for the sovereign, accepted respectively in the city-states of Lagash, Uruk and Ur (as well as most of the rest of Sumer), although the various terms may have expressed different aspects of the Mesopotamian concept of kingship. A lugal at that time is assumed to have been "normally a young man of outstanding qualities from a rich landowning family." Thorkild Jacobsen theorized that he was originally an (elected) war leader, as opposed to the (likewise elected) en, who dealt with internal issues. Among the earliest rulers whose inscriptions describe them as lugals are Enmebaragesi and Mesilim at Kish, and Meskalamdug, Mesannepada and several of their successors at Ur. At least from the Third Dynasty of Ur onwards, only lugal was used to designate a contemporary sovereign in Sumerian."

https://en.wikipedia.org/wiki/Lugal