John Everett Millais

Sir John Everett Millais, 1st Baronet, PRA 8 June 1829 – 13 August 1896) was an English painter. He was one of the founders of the Pre-Raphaelite Brotherhood, and painted several of their most famous works. 
By the time has was 30 he had changed to become a portrait painter of famous people. He was equally good at that, and became one of the best of the later 19th century. 
His marriage to Effie (Euphemia Chalmers Gray) had a history. She had married John Ruskin, but Ruskin did not consummate the marriage.
When she met Millais some five years after her marriage, she was still a virgin. She left her husband, and their marriage was annulled in 1854. In 1855 she married Millais and they had eight children. The triangle has been used in drama and literature many times.