Vaiśravaṇa is the Buddhist king of the Four Heavenly Kings and a deity associated with wealth.
Vaiśravaṇa guards the north and leads the yakshas, powerful nature spirits in Buddhist cosmology. In the Pali tradition he is called Vessavaṇa, while East Asian traditions know him by names such as Bishamonten in Japan and Duōwén Tiānwáng in China. The latter means “Heavenly King Who Hears Much,” linking him with the Buddha’s teachings.
His association with wealth developed from his identity with Kubera, the ancient Indian god of riches. Buddhist images may show him in armor carrying an umbrella or parasol, a symbol of sovereignty, or a pagoda. A mongoose that spits jewels is another attribute, representing generosity overcoming greed.
The other three Heavenly Kings are Dhṛtarāṣṭra of the east, Virūḍhaka of the south, and Virūpākṣa of the west. Thus, the wealth connection and northern guardianship point specifically to Vaiśravaṇa.