House Kr.ē is the current Xi'an ImperialHouse. They first came to prominence during the Spirit Wars, gaining the attention of Imperial House Xy.ō for collecting volumes of strategically valuable intelligence on the Kr'thak. Kr.ē was Imperially sanctioned as the prime intelligence house in II.1138 (SEY 578).
As one of the largest surviving houses after the end of the Spirit Wars, Kr.ē was instrumental in reconstruction efforts. They were selected as the Third Imperial House in III.0 (SEY 1457). The infant U.e'o se Kr.ē became House Kr.ē's first Emperor. The current Emperor, T.uēng se Kr.ē, is the last member of his line.