dynastyBecameReigningHouseIn

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: dynastyBecameReigningHouseIn

Indicates that a particular dynasty became the officially ruling or dominant house of authority in a specified political entity or territory at a certain time.