Why did the dragons become nearly extinct before Game of Thrones began?

## The big disaster was a Targaryen civil war

Dragons were not slowly disappearing before the Targaryens came to Westeros. Quite the opposite: Aegon the Conqueror arrived with Balerion, Vhagar, and Meraxes, then used them to win most of the Seven Kingdoms. For generations afterward, House Targaryen had a large dragon population. The real collapse came much later, during the Dance of the Dragons, the Targaryen succession war between Rhaenyra Targaryen and Aegon II. Both sides had dragons, and both treated them as weapons. That turned a family fight over the Iron Throne into a disaster for the entire species. Dragons killed other dragons in the sky and on the ground, riders died with them, and eggs and hatchlings became much harder to protect. The war lasted from 129 to 131 AC in the book timeline, but its damage lasted far longer. It left the Targaryens weaker, Westeros scarred, and dragons close to gone.

## The Dance killed dragons in several ways

The Dance was not one single event where every dragon died at once. It was a chain of losses. Dragon fought dragon in battles, which was especially deadly because dragons were among the few things capable of seriously hurting one another. Some were killed alongside their riders in combat; others were murdered, trapped, or badly wounded amid the chaos of the war. The worst civilian attack came when a mob stormed the Dragonpit in King's Landing. Several dragons were killed there by ordinary people who were terrified of them, furious about the war, or both. That scene matters because it shows the dragons were not invincible, particularly when confined in a building and attacked from every direction. By the end of the conflict, the breeding population had been shattered. Losing adult dragons was bad enough, but losing eggs, young dragons, riders, handlers, and secure places to keep them made recovery much harder.

## The survivors did not bounce back

The Dance nearly wiped dragons out, but it did not immediately finish the job. A few survived the war. The problem was that the dragons born or living afterward were often described as smaller, weaker, and sickly compared with giants such as Balerion or Vhagar. During the reign of Aegon III, remembered as the Dragonbane, the last known dragon died in 153 AC. His nickname does not prove he personally killed it or secretly ordered dragons destroyed. It mainly reflects the cruel fact that the species ended during his reign, after the war that traumatized him as a child. The books never give one confirmed answer for why the remaining dragons declined. Maybe too few were left to breed well. Maybe their eggs needed conditions nobody could recreate. Maybe the loss of Valyrian knowledge, magic, volcanic environments, or skilled dragonkeepers mattered. Those are possibilities, not settled facts.

## What Game of Thrones itself tells us

At the start of Game of Thrones, living dragons are treated as extinct. In Season 1, Episode 1, "Winter Is Coming," Daenerys receives three dragon eggs as a wedding gift. They are seen as priceless old relics, apparently turned to stone, not as eggs anyone seriously expects to hatch. That is why Daenerys hatching Drogon, Rhaegal, and Viserion in Season 1, Episode 10, "Fire and Blood," is such a huge shock. She has not just gained unusual pets or weapons; she has brought back a creature the world thought was gone forever. The original HBO series does not stop to give a detailed history lesson about precisely how the old dragons died. So, if you only watch Game of Thrones, the clean answer is simply that they vanished long ago. House of the Dragon provides the fuller adaptation-level context: a Targaryen war turns a once-thriving dragon dynasty against itself.

## It was about 145 years, not really 300

A common point of confusion is the timeline. People in the show sometimes use broad phrases about dragons being gone for "three hundred years," but that number fits better with how long the Targaryens had ruled since Aegon's Conquest. In the book chronology, the final known dragon dies in 153 AC, while A Game of Thrones begins in 298 AC. That puts the gap at roughly 145 years before Daenerys's eggs hatch. Either way, dragons have been absent long enough that most people regard them as myths, old symbols on banners, or stories from a more magical age. Daenerys's dragons therefore change the political rules almost overnight. The Targaryens originally conquered Westeros with dragons; Daenerys suddenly has the same kind of advantage, in a world whose armies, castles, and rulers were built around the assumption that no one could ever have one again.

## Did the maesters secretly wipe them out?

This is one of the biggest fan theories, and the honest answer is: maybe, but it is not confirmed. Some characters and readers suspect the maesters of the Citadel hated dragons because dragons made Targaryen kings nearly unbeatable. Under that theory, maesters may have poisoned dragons, sabotaged eggs, or helped make sure the species never recovered. There are suspicious details in the larger book history, but no clear canon reveal saying, "the maesters did it." The well-established cause is the Dance of the Dragons: it destroyed most of the population through war, neglect, and violence. The theory may help explain why the survivors and their eggs failed afterward, but it cannot replace the basic explanation. In HBO continuity, the caution is even more important. Game of Thrones confirms the extinction and Daenerys's miracle, while House of the Dragon shows the war beginning; it does not make every book-era theory automatic TV fact.