Back Linie následnictví tonžského trůnu Czech Thronfolge (Tonga) German Sucesión al trono de Tonga Spanish Ordre de succession au trône tongien French Garis suksesi takhta Tonga ID Linea di successione al trono di Tonga Italian Linha de sucessão ao trono de Tonga Portuguese Linia de succesiune la tronul din Tonga Romanian Порядок наследования тонганского престола Russian ลำดับการสืบราชสันตติวงศ์ตองงา Thai
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The order of succession to the throne of Tonga is laid down in the 1875 constitution. The crown descends according to male-preference cognatic primogeniture. Only legitimate descendants through legitimate line of King George Tupou I's son and grandson, Crown Prince Tēvita ʻUnga and Prince ʻUelingatoni Ngū, are entitled to succeed. A person loses their right of succession and deprives their descendants of their right of succession if they marries without the monarch's permission.