Oda Nagamasu (織田 長益), also known as Urakusai (有楽斎) (1548 - 1622), was a brother of Oda Nobunaga, converted to Christianity in 1588 and the father of Nagamasa and Toshimasa.
Nagamasu accomplished practitioner of the tea ceremony, which he studied under the master, Sen no Rikyu. Nagamasa eventually started his own school of the tea ceremony.
The article is originally from OpenHistory.