<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
Who are the old master's of the art world ?<|im_end|>
<|im_start|>assistant
The term "old master" generally refers to European artists who were active prior to the 19th century and whose work has had a significant impact on the history of art. Some of the most well-known old masters include:

    Leonardo da Vinci
    Michelangelo
    Raphael
    Titian
    Caravaggio
    Rembrandt
    Vermeer
    Rubens
    Velázquez
    El Greco

These artists, among others, are revered for their technical mastery, innovative use of materials, and groundbreaking contributions to the development of various artistic movements, styles, and genres. Their works are still highly sought after by collectors, museums, and art enthusiasts around the world.<|im_end|>
<|im_start|>user
For each of those artists, please list the #1 painting that sold for the most money.<|im_end|>
<|im_start|>assistant
Determining the #1 painting that sold for the most money for each of these artists can be challenging, as the prices of some of the artworks might not be publicly disclosed, or the sales could have occurred in private transactions. However, based on available information up to September 2021, here is a list of notable paintings by these artists that have fetched high prices:

1. Leonardo da Vinci: "Salvator Mundi" – Sold for $450.3 million in 2017.
2. Michelangelo: There are no known records of Michelangelo's paintings being sold at auction. Many of his works are part of museum collections or in their original locations, like the Sistine Chapel.
3. Raphael: "Portrait of a Young Man" – The painting's value is estimated to be around $100 million, but it was looted during World War II and has never been recovered. The painting's current whereabouts are unknown.
4. Titian: "Diana and Actaeon" – Sold for £50 million (approximately $70 million) to the National Galleries of Scotland and the National Gallery, London in 2009.
5. Caravaggio: "Judith Beheading Holofernes" – This painting was discovered in an attic in Toulouse, France, and was estimated to be worth around €120 million. However, it was sold privately to an anonymous buyer in 2019 for an undisclosed amount.
6. Rembrandt: "Portrait of Jan Six" – There is no public record of this painting being sold at auction. It has remained in the possession of the Six family for centuries, and its value is estimated to be around $180 million.
7. Vermeer: "Young Woman Seated at a Virginal" – Sold for £16.2 million (approximately $30 million) in 2004.
8. Rubens: "Massacre of the Innocents" – Sold for £49.5 million (approximately $76.7 million) in 2002.
9. Velázquez: "Portrait of Juan de Pareja" – Sold for $5.5 million in 1970. Adjusted for inflation, the price would be over $37 million today.
10. El Greco: "Saint Dominic in Prayer" – Sold for £9.15 million (approximately $13.9 million) in 2013.<|im_end|>
<|im_start|>user
tell me more about Albrecht Dürer<|im_end|>
<|im_start|>assistant
Albrecht Dürer is an extremely influential painter and printmaker who is generally regarded as the greatest German Renaissance artist.

Upon outbreak of the plague in Nuremberg, Dürer traveled to Italy and learned by absorbing and copying the work of Italian artists he's met during his travels. Dürer embarked upon a career as printmaker and painter upon his return to Nuremberg in 1495 post-plague. He was immediately successful and his woodcut series, *the Apocalypse*, published in 1498, by reason of its innovative format, technical mastery, and the forcefulness of its imagery, made Dürer famous throughout Europe.

In the summer of 1505 the plague reappeared in Nuremberg and Dürer again set out for Venice, this time as a well-known artist with a reputation based on his woodcuts and engravings. His major commission, *The Feast of the Rose Garlands*, 1506, painted for the Fondaco dei Tedeschi, the association of German merchant to be installed in the church of San Bartolommeo, a work that in its solemnity and use of Venetian color and motifs, silenced any criticism of Dürer's abilities as a painter. 

Dürer attracted the attention of the Emperor Maximilian I who had visited Nuremberg in February, 1512, and subsequently gave Dürer several commissions. The three so-called "Master Engravings" he made: *Knight, Death, and the Devil*, of 1513, *Saint Jerome in his Study*, and *Melancolia I* both of 1514, raised the engraving technique to new heights and reflect Dürer's ongoing assimilation of Italian art and theory, and in the case of *Melancolia I*, Neoplatonic philosophy.

Dürer died on 6 April 1528, possibly as a result of a malarial infection contracted in 1521 when he went to Zeeland in the hopes of seeing a stranded whale.<|im_end|>