The fujiwara rose to power by

forming strategic alliances with other noble families, gaining control over key positions within the imperial court, and marrying into the imperial family. They established themselves as a powerful political force in Japan during the Heian period (794-1185). The Fujiwara family held positions such as regents and chief advisors to the emperors, allowing them to exert significant influence over government affairs.

One of the main strategies used by the Fujiwara was to strategically marry their daughters into the imperial family. This allowed them to gain direct access to the imperial lineage, greatly enhancing their political influence and prestige. By frequently having their daughters become empresses or consorts, the Fujiwara were able to further solidify their grip on power.

Additionally, the Fujiwara formed alliances and established close relationships with other powerful noble families. Through these alliances, they were able to leverage their influence and consolidate power, creating a network of support that further strengthened their position.

The Fujiwara also took advantage of their role as regents for underage emperors. During periods when an emperor was too young to rule, the regents held the real power and made decisions on their behalf. The Fujiwara used this position to promote their own interests and ensure their continued dominance over the imperial court.

Overall, the rise to power of the Fujiwara family was the result of their strategic marriages, alliances, and control over key positions within the imperial court. These factors allowed them to establish themselves as one of the most influential and powerful families in Japanese history.