In the context of this artwork, analyze the London version of the The paintings.
A very similar painting in the National Gallery, London, is also ascribed to Leonardo da Vinci, and ascribed a date before 1508. Originally thought to have been partially painted by Leonardo's assistants, a close inspection of the painting during the recent restoration between 2008 and 2010 has led the conservators from the National Gallery to conclude that the greater part of the work is by the hand of Leonardo, but debate continues.  Parts of the painting, the flowers in particular, indicate the collaboration and have led to speculation that the work is entirely by other hands, possibly Leonardo's assistant Giovanni Ambrogio de Predis and perhaps Evangelista.It was painted for the chapel of the Confraternity of the Immaculate Conception, in the church of San Francesco Maggiore in Milan. It was sold by the church, very likely in 1781, and certainly by 1785, when it was bought by Gavin Hamilton, who took it to England. After passing through various collections, it was bought by the National Gallery in 1880.
Milan Giovanni Ambrogio de Predis Leonardo da Vinci National Gallery Evangelista Gavin Hamilton Ambrogio de Predis