Question: When did Da Vinci make art with Marcantonio Della Torre?
About the article "Leonardo da Vinci", section "Anatomy".

Candidate passages:
Marcantonio della Torre (1481–1511) was a Renaissance Professor of Anatomy who lectured at Pavia and at the University of Padua.
It is believed that della Torre and Leonardo da Vinci, who studied the human anatomy by dissecting corpses, were intending to publish a book, but this did not eventuate as della Torre's life was cut short by plague in 1511.
By this time Leonardo had made over 750 detailed anatomical drawings with annotations.
Both Giorgio Vasari and Paolo Giovio claim that della Torre had written anatomical texts, but none are known to have survived to the modern age. 
Leonardo da Vinci had a number of powerful patrons, including the King of France.
He had, over the years, a large number of followers and pupils.
His patrons included the Medici, Ludovico Sforza and Cesare Borgia, in whose service he spent the years 1502 and 1503, and King Francis I of France.
He had working relations with two other notable scientists, Luca Pacioli and Marcantonio della Torre, and was a close friend of Niccolò Machiavelli.
He had a close, long-lasting friendship with Isabella d'Este, a renowned patroness of the arts, whose portrait he drew while on a journey that took him through Mantua.
The de Predis brothers and collaboration on "Virgin of the Rocks".
Feud with Michelangelo  
Martino della Torre was a nephew of Pagano I, who had established the power of the della Torre (also known as Torriani) family in Milan.
In 1241 he opposed to the nomination as podestà of the city of Paola Soresina.
Leader of the popular party, in 1259 he was elected in the Council of the Elder, but, when he abused of his power, the ousted nobles called the Ghibelline leader Ezzelino III da Romano against him.
However, the latter was defeated at Cassano d'Adda by the Guelph league led by Martino and Oberto Pallavicino: della Torre obtained the seignories of Lodi, Como, Vercelli and Bergamo.
He subsequently struggled, with success, against the election of Ottone Visconti as archbishop of Milan by Pope Urban IV.
After having defeated the allied of the Visconti, he received the ruler of Novara also.
Martino della Torre died in Lodi in 1263. 
"Leonardo da Vinci" was built for Società di Navigazione Transatlantica Italiana.
Her port of registry was Genoa.
The Italian Official Number 1306 and Code Letters NVJA were allocated.
In 1934, her Code Letters were changed to IBPS.
In December 1929, "Leonardo da Vinci" was caught in a storm off Cape Finisterre, Spain whilst transporting a number of valuable Italian works of art which were to be exhibited at Burlington House, Picadilly, London.
She was accompanied on her voyage by the "Marina Militare" tug "Teso".
The cargo was insured for £14,000,000.
Works of art on board included the painting "The Birth of Venus" by Botticelli, the three Davids, sculptures by Donatello, Michelangelo and Verrocchio.
Another sculpture was "Virgin and Child" by Jacopo della Quercia.
"Leonardo da Vinci" departed London on 12 April 1930 to return the artworks to Italy.
During the Second Italo-Abyssinian War, "Leonardo da Vinci" was used as a troopship in March 1935.
On 28 February, "Leonardo da Vinci" was in collision with , which dragged her anchor during a storm at Messina, Italy.
Damage to "Leonardo da Vinci" was slight.
In 1937, "Leonardo da Vinci" was sold to Lloyd Triestino, Trieste.
On 14 February 1941, she was captured by .
At the time, "Leonardo da Vinci" was at Kismayu, Italian Somaliland.
She was passed to the MoWT as a war prize.
Her port of registry was changed to Mombasa, Kenya, under the British Flag.
The Code Letters VRTV and United Kingdom Official Number 159356 were allocated.
She was placed under the management of the City Line.
"Leonardo da Vinci" was a member of Convoy HX 255, which departed New York on 2 September 1943 and arrived at Liverpool on 16 September.
She was carrying general cargo and was bound for Glasgow.
Later in 1943, "Leonardo da Vinci" was renamed "Empire Clyde" in line with the 'Empire' naming practice for captured vessels.
Her Code Letters were changed to GCFB and her port of registry was changed to London.
She was converted to a hospital ship for the British Army.
In 1947 she was commissioned as RFA "Empire Clyde", with a Royal Navy medical team aboard.
In 1948 she was renamed RFA "Maine", the fourth Royal Fleet Auxiliary ship to bear that name.
When the Korean War broke out, "Maine" was initially the only hospital ship serving in the area.
On 14 July 1950.
"Maine" arrived at Pusan, South Korea, from where she ran a service carrying casualties to Fukuoka, Japan.
On 10 October 1951, "Maine" lost a propellor whilst passing through the Shimonoseki Straits.
and took her under tow.
On 1 December 1952, caught fire at Sasebo harbour, Japan.
was damaged.
"Maine" treated casualties from these ships.
For her service, "Maine" was awarded a Korean War battle honour.
During her time in Korea, her hospital facilities were under the command of Queen Alexandra's Royal Naval Nursing Service Matron Joan Woodgate.
"Maine" was scrapped at Hong Kong in April 1954. 
The Pink Panther is strolling the streets of Italy when he spots Leonardo da Vinci painting what appears to be his newest masterpiece, the "Mona Lisa".
Da Vinci paints a grumpy mouth on the "Mona Lisa", but the Pink Panther decides to covertly replace the frown with a teeth-filled smile.
When the smile wins the appreciation of an art patron, as da Vinci is enraged and repaints the unhappy frown back onto "Lisa".
da Vinci and the Pink Panther then repeatedly swap back and forth between the frown and smile until the feline's version of the classic painting ends up in the Louvre—complete with the panther's pink paw print stamped on the painting.