valley
settle
extend
dynasty
noble
fertile
to add to something in order to make it bigger or longer
to go and live permanently in a new country, area, town, etc….
an area of low land between hills or mountains, often with a river running through it
a series of rulers or leaders who are all from the same family, or a period when a country is ruled by them
a person who belongs to a high social rank in a society, especially by birth (a noble family)
describes land that can produce a large number of good quality crops