when did he die?
On 2 May 1519
Old age and death
on 2 May 1519 
what does patterns in nature refer to? They are visible regularities of form found in the natural world. what patterns does it include? It includes symmetries, trees, spirals, meanders, waves, foams, tessellations, cracks and stripes. what is it caused by? Causes can be in the mathematics that governs what patterns can physically form, and among living things in the effects of natural selection, that govern how patterns evolve. were these indicated in any books? UNANSWERABLE can you name anyone from history who has done such researches on this? Leonardo da Vinci where was he born? In the Tuscan hill town of Vinci was he into painting? Yes his main achievement is as a painter can you name some of his works? "Baptism of Christ" when was it painted? UNANSWERABLE what was it about? UNANSWERABLE
2 May 1519 2 May 1519 2 May 1519
Leonardo da Vinci Leonardo da Vinci Leonardo da Vinci
Old age and death Old age and death Old age and death
 2 May 1519 2 May 1519 Leonardo died at Clos Lucé on 2 May 1519 at the age of 67, possibly of a stroke. 
wiki:7771258
Leonardo da Vinci [SEP] Old age and death
He continued to work at some capacity until eventually becoming ill and bedridden for several months. Leonardo died at Clos Lucé on 2 May 1519 at the age of 67, possibly of a stroke. Francis I had become a close friend. Vasari describes Leonardo as lamenting on his deathbed, full of repentance, that "he had offended against God and men by failing to practice his art as he should have done." Vasari states that in his last days, Leonardo sent for a priest to make his confession and to receive the Holy Sacrament. Vasari also records that the king held Leonardo's head in his arms as he died, although this story may be legend rather than fact.