As a symbol of worldly power, the umbrella has taken on the proportions, colorations and embellishments that were inherited from ancient religious traditions.
In Vajrayana Buddhism, this large umbrella (atapatra) was even deified into the thousand-armed-footed goddess Sitapatra, whose name literally means the white umbrella.
Wat Phra That Doi Suthep, ThailandWell, it's possible to search and to find analogies still long.
From ancient megaliths...
OM NAMAH SHIVAYA