JonathanJonathan - Saul's son, Jonathan, would prove himself to be an able warrior.  His efforts at Micmash were worthy enough to be recorded in the Bible:

 

"Now the day came that Jonathan, the son of Saul, said to the young man who was carrying his armor, 'Come and let us cross over to the Philistines' garrison that is on the other side.'  But he did not tell his father...When both of them revealed themselves to the garrison of the Philistines, the Philistines said, 'Behold, Hebrews are coming out of the holes where they have hidden themselves.'  So the men of the garrison hailed Jonathan and his armor bearer and said, 'Come up to us and we will tell you something.'  And Jonathan said to his armor bearer, 'Come up after me, for the Lord has given them into the hands of Israel.'  Then Jonathan climbed up on his hands and feet, with his armor bearer behind him; and they fell before Jonathan, and his armor bearer put some to death after him.  That first slaughter which Jonathan and his armor bearer made was about twenty men within about half a furrow in an acre of land." (I Samuel 14:1 & 11-14, NASB)

 

He also would become a close friend of Saul's successor, David.

"Now it came about when he had finished speaking to Saul, that the soul of Jonathan was knit to the soul of David, and Jonathan loved him as himself." (I Samuel 18:1, NASB)