Nadab Of Israel
Nadab was the son and successor of Jeroboam, the first king of Israel after The Division Of Israel into The Northern Kingdom of "Israel" and The Southern Kingdom of "Judah (see also Israelite Monarchy - The Origin, The Civil War, The United Kingdom and Israelite Monarchy - The Messiah).
"14:19 And the rest of the acts of Jeroboam, how he warred, and how he reigned, behold, they are written in the book of the chronicles of the kings of Israel [see Jeroboam Of Israel].
"Nadab the son of Jeroboam began to reign over Israel"
The northern kingdom of Israel lasted just over 200 years before they were conquered and taken away into exile by the Assyrians. They never returned, and have become known to history as the "Lost Ten Tribes of Israel." Unlike the southern kingdom of Judah which had only one royal line (i.e. from David; see also David, Future King Of Israel), the northern kingdom of Israel had nine royal lines, or dynasties, of which the first began with Jeroboam and ended with his son Nadab (see the Fact Finder question below).
The reigns of the kings of Israel and Judah were usually recording in relation to their counterpart in the other kingdom i.e. "Nadab the son of Jeroboam began to reign over Israel in the second year of Asa king of Judah" (see Kings of Israel and Judah). Nadab's reign began during the reign of Asa of Israel, and lasted two years.
"15:25 And Nadab the son of Jeroboam began to reign over Israel in the second year of Asa king of Judah, and reigned over Israel two years.
As was also very common in Royal Democracy, supporters of a king "voted" with their swords (for those who think that modern-day "democracy" is superior, consider some of the nation-destroying misfits who have been elected to high office in western democracies in the last few decades). In the case of corrupt Nadab ("he did evil in the sight of the LORD"), he was assassinated and succeeded by Baasha of the tribe of Issachar (Issachar was one of the northern ten tribes - see the map).
"15:27 And Baasha the son of Ahijah, of the house of Issachar, conspired against him; and Baasha smote him at Gibbethon, which belonged to the Philistines; for Nadab and all Israel laid siege to Gibbethon.
Baasha then began his own royal line, or dynasty. In order to do that, without having any seemingly legitimate rivals, Baasha killed everyone in the royal line of Jeroboam and his son Nadab i.e. he "smote all the house of Jeroboam; he left not to Jeroboam any that breathed." It was not however entirely of his own doing; it was the fulfillment of the LORD's wrath upon the line that had become corrupt, "according unto the saying of the LORD" "because of the sins of Jeroboam which he sinned, and which he made Israel sin, by his provocation wherewith he provoked the LORD God of Israel to anger."
"15:29 And it came to pass, when he reigned, that he smote all the house of Jeroboam; he left not to Jeroboam any that breathed, until he had destroyed him, according unto the saying of the LORD, which he spake by his servant Ahijah the Shilonite: 15:30 Because of the sins of Jeroboam which he sinned, and which he made Israel sin, by his provocation wherewith he provoked the LORD God of Israel to anger." (1 Kings 15:29-30 KJV)
Little changed with the removal of Nadab however. The wars between Israel and Judah continued, as did their corruption until the LORD (i.e. Jesus Christ; see 'Before Abraham Was, I AM' and 'The God Of The Old Testament') eventually had both kingdoms obliterated - Israel through The Galilee Captivity to Assyria (ending about 721 BC) and Judah's fall to Babylon (ending about 586 BC; see The Prophets: Jeremiah).
"15:31 Now the rest of the acts of Nadab, and all that he did, are they not written in the book of the chronicles of the kings of Israel?
Fact Finder: How many dynasties were there in Israel and Judah? Why the difference?