Our pick of the highlights from April's auctions

Rare painting of a Montmartre street scene sold three times in the same auction

Plus, the newly discovered Van Gogh is sold and artist Rana Begum on Tess Jaray

Cross-category relay sale brought in $176.2m against high estimate of $120.5m and culminated with surprise Basquiat announcement

The work sold to cryptocurrency entrepreneur Andre Abdoune and all proceeds will be donated to four charities fighting child poverty

Ewbank Auctions in England has estimated the amateur paintings by Josephine Butler at around £250 each

The work appeared suddenly last May at the University Hospital Southampton as a thank you to its staff during the first wave of the Covid-19 pandemic

The 1982 work sold today at Christie's in Hong Kong to an Asian buyer

A multi-agency $15m initiative backed by the WHO and funded through a series of charity auctions at Christie’s will support artist-led projects to improve mental, social and environmental health

A number of Indian artists made their auction debut this season, though several established names missed the mark

Year-long series of Healing Arts auctions and events aims to support mental health treatment and recovery in the wake of Covid-19

The cult of the individual reigns supreme but in reality Renaissance works were often not made by one hand

Amid debate, AAMD votes 91-88 against exploring a controversial revision of rules to allow proceeds to finance collections care

Auction house's head of sale Max Moore has already personally bought a work by the artist

Actéon auctioneers expect the 17th-century study of a male nude, authenticated by Ann Sutherland Harris and Louis de Bayser, to sell for €30,000 to €50,000

The fashion designer, who died in 2019, was an enthusiastic collector of art and design

Ahead of yesterday's sale in Paris, the Man Ray Trust called for a delay claiming that Lucien Treillard “stole a substantial number of Man Ray’s works and possessions"

1932 painting of artist's close friend has been out of the public eye for over 90 years but now comes up for auction at Christie's in New York

Tower of the Koutoubia Mosque was one of three works by the former British prime minister sold at Christie's tonight for a total of £11.2m—to the same buyer

Jean Dunand's Les Palmiers was designed for a Parisian apartment in the 1930s

Montmartre windmill painting is on view with Sotheby’s for the first time since it left the easel

Plus, artist Doug Aitken on composer Terry Riley

The rare work shows a distinctive pastoral side to the city's Montmartre neighbourhood

The group of predominantly post-war art, including works by Clyfford Still and Andy Warhol, will be sold over a series of sales this spring

The buyer of Beeple's NFT work will be able to pay with ETH later this month

Works by the artists, and their friends, largely exceeded estimates in the white glove auction. Part two will take place tomorrow

With investors such as Elon Musk and Chamath Palihapitiya backing the purely digital art form, the trade is beginning to take notice

The 1982 painting will be sold in a single-lot evening sale at Christie's Hong Kong on 23 March with an estimate of $31m to $41m

Group of 29 works left by John Ady is hoped to make around £35,000 for the Cambridge gallery when it sells at Cheffins auction house this month

Online bidding pioneer Auction Technology Group (ATG) is intending to go public to secure investment. The former editor of the original ATG, Antiques Trade Gazette, charts its rise and rivals