El Greco
Adoration of the Name of Jesus
1578-79
Oil on canvas, 75 x 55 in. (190 x 140 cm.)
Chapter House, Monasterio de San Lorenzo, El Escorial
The three kneeling figures in the foreground are Philip II of Spain, Doge Mocenigo of Italy, and Pope Pius V. These were the three members of the Holy League.
Source (photo, data, and comments): Web Gallery of Art