Ruler Mentioned in the Bible by name

Hanun

And it came to pass after this, that the king of the children of Ammon died, and Hanun his son reigned in his stead. [The name Hanun means unconditional mercy, which is ironic considering how he later treats David's servants, see verse 4.]

And David said, "I will show mercy (caring love – Hebr. chesed) [keep my covenant] to Nahash the son of Chanon in the same way that he showed mercy (Hebr. chesed) [was loyal] to me." So David sent gifts by the hands of his servants to comfort him after the death of his father. And David's servants came to the land of the Ammonites.

But the princes of the sons of Ammon said to Chanon their lord, "Do you really think that David wants to honor your father by sending comforters to you? Hasn't David sent his servants to you to explore the city and spy on it and overthrow it?"

So Chanon took David's servants and shaved off half their beards [Lev. 19:27; Isaiah 50:6] and cut their clothes in half at the buttocks [so that their genitals were exposed] and sent them away.

Then David said, "I will show kindness to Hanun, the son of Nahash, because his father showed me kindness (caring love—Hebr. chesed)." So David sent messengers to comfort him in his grief over his father. When David's servants came to the land of the Ammonites to comfort Hanun,

the princes of the Ammonites said to Hanun, "Do you think David is sending comforters to you to honor your father? No, it is to explore and destroy and spy on the land that his servants have come to you."

Hanun then seized David's servants, shaved them, cut their clothes in half at the seat, and sent them away. [A humiliating act, but also a sign of mourning, see Isa. 15:2; Jer. 48:37.]

When the Ammonites realized that they had made themselves odious to David, Hanun and the Ammonites sent 1,000 talents [34 tons] of silver to hire chariots and horsemen from Aram-Naharajim, from Aram-Maacha, and from Tsova.