The King's Peace, or king's peace, is a concept and law devised by Aegon I Targaryen for of all subjects of the Iron Throne, including nobles, prohibiting violence and war for the settling of disputes.[N 1]
Before the Conquest, wars between the realms of Westeros were common. Even at kingdoms said to be at peace, neighboring lords would often settle disputes violently. Following Aegon's Conquest, during which he unified six of the seven kingdoms under Targaryen rule, he devised the King's Peace, ending this practice.
Under the King's Peace, liege lords are to adjudicate disputes of their vassal petty lords or landed knight, while those between the great houses of the realm are to be settled by the Iron Throne. Those nobles who go to war without the leave of the King are to be considered rebels and traitors to the Crown. The City Watch of King's Landing is tasked with keeping the king's peace within the city walls.
A Game of Thrones
With the increase of crime in King's Landing due to the influx of travelers for the upcoming Tourney of the Hand, Lord Renly Baratheon, master of laws, threatens to remove Janos Slynt from his post as Commander of the City Watch for his failure to uphold the king's peace.
A Clash of Kings
In the aftermath of the Battle of Blackwater Bay, King Joffrey I Baratheon welcomes back into the king's peace those who fought for Stannis Baratheon if they beg his forgiveness for their treasons.
A Storm of Swords
In the aftermath of the Red Wedding, most of the riverlords bent the knee to the Iron Throne and are welcomed back to the king's peace with royal pardons signed by the new king, Tommen I Baratheon.
- Fire & Blood, Three Heads Had the Dragon - Governance Under King Aegon I.
- A Game of Thrones, Chapter 27, Eddard VI.
- A Game of Thrones, Chapter 16, Eddard III.
- A Game of Thrones, Chapter 39, Eddard X.
- A Game of Thrones, Chapter 43, Eddard XI.
- A Clash of Kings, Chapter 65, Sansa VIII.
- A Storm of Swords, Chapter 19, Tyrion III.
- A Storm of Swords, Chapter 72, Jaime IX.