Aragonese school of the third quarter of the 15th century."The Trinity".Tempera painting on panel and gold background.Size: 156 x 103 cm; 173,5 x 121 cm (frame).We are in front of an Aragonese panel, dated in the third quarter of the XV century, occupied almost entirely by the Holy Trinity, with God the Father, the Holy Spirit and Jesus Christ in the foreground, arranged on a semi-dark background. The theme of the Trinity always posed difficulties for painters, since the essential unity of the three persons of the Trinity must be expressed, one of them being an animal, with the compositional complication that this entails. However, here the painter manages to reflect this idea of unity through a balanced composition, a reflection of the knowledge of the pictorial technique. The figures, magnificently treated, denote the artist's knowledge of Flemish primitive painting, especially noticeable in the treatment of the folds, worked with great dynamism, and the Flemish-inspired costumes. Closing the composition, symmetrical and balanced, we see in the corners the Tetramorphos, that is, the symbolic incarnation of the four evangelists, an iconography already used in the Middle Ages that associates the lion to Mark, the bull to Luke, the eagle to John and the angel to Matthew.