The altarpiece of the main altar of the parish church of San Pedro de Bergara is done in the first half of the 16th century although, given the diversity of its carvings, it was possible to confirm that it was executed at two different times. First, the top part with the three bodies and, later, the seat or the predella.
The upper part consists of 3 bodies divided into 5 columns and finished with a top part. In each of the niches of the first body there is an apostle with his attribute. San Pedro is located in the central column, on his left is San Pablo and Santiago, and to his right is San Andrés and San Bartolomé.
In the central niche of the second body is San Roque, a figure later than 16th century and together, they have four deacons or ecclesiastical ministers. In the third body scenes from the passion are recreated and above it, crowning the whole set is the group of Calvary. The entire altarpiece is finely decorated with typical plateresque style elements like shells and grotesques.
The four evangelists of the predella are presented individually, one in each niche, in scenes that naturally reflect a moment from their rooms.
The making of the altarpiece at two different times, highlights the diversity of styles of the two artists who took part in it. On the one hand, the influence of the Gothic style, reflected in the size of the relief's of the top part of the altarpiece, probably by Juan de Gante. On the other hand, the splendour of the renaissance style that can be seen in the more expressive and elaborate carving of the four evangelists of the predella attributed to Juan de Ayala.