As a noun dynasty
is a series of rulers or dynasts from one family.
As a proper noun destiny is
A series of rulers or dynasts from one family.
That to which any person or thing is destined; a predetermined state; a condition foreordained by the Divine or by human will; fate; lot; doom.
The fixed order of things; invincible necessity; fate; an irresistible power or agency conceived of as determining the future, whether in general or of an individual.
* date with destiny