Final answer:
The painting by Titian features Jacopo Pesaro being presented to Saint Peter by Pope Alexander VI. Titian's role in the Late Renaissance involved rivalry with Tintoretto and Veronese in creating dynamic and relatable artworks for various patrons.
Step-by-step explanation:
In the painting by Titian, the main characters depicted are Jacopo Pesaro being introduced to Saint Peter by Pope Alexander VI. This artwork was commissioned following a naval victory and is symbolic of the patron's devotion and gratitude. The horizon is not explicitly described in the reference information provided; however, in many of Titian's works, background elements often serve to complement the main subject or provide a historical or religious context. In the Venetian school during the Late Renaissance, Titian was a key figure whose mastery was only rivaled by Tintoretto and Veronese. These painters were known for transforming traditional religious narratives into relatable human drama with dynamic and sensual subjects for both local churches and international patrons.