In Northern Italy, the High Renaissance is represented primarily by members of the Venetian school, especially by the latter works of Giovanni Bellini, especially religious paintings, which include several large altarpieces of a type known as "Sacred Conversation", which show a group of saints around the enthroned Madonna. His contemporary Giorgione, who died at about the age of 32 in 1510, left a small number of enigmatic works, including "The Tempest", the subject of which has remained a matter of speculation. The earliest works of Titian date from the era of the High Renaissance, including a massive altarpiece "The Assumption of the Virgin" which combines human action and drama with spectacular colour and atmosphere. Titian continued painting in a generally High Renaissance style until near the end of his career in the 1570s, although he increasingly used colour and light over line to define his figures.