Taiyu-in at Rinnoji Nikko - Taiyuin-byo is the mausoleum of Iemitsu Tokugawa the shogun who was the grandson of Ieyasu. Rinnoji Temple was founded in 766 AD by the Buddhist hermit monk Shodo Shonin. Rinnoji quickly became a popular retreat for ascetic monks who wished to meditate in the mountains. It was once so important that it had 500 sub-temples under its rule. Rinnoji is best known for its Sanbutsudoh Three Buddha Hall and the beautiful Japanese meditation garden Shoyo-en on its grounds. The layout at Shoyo-en is modeled after Lake Biwa, showing the Japanese knack for representation through reduction and miniaturization.