Nativity of the Virgin (Altdorfer)

The Nativity of the Virgin is a painting by the German Renaissance artist Albrecht Altdorfer, dating to c. 1520, which is now in the Alte Pinakothek in Munich, Germany.
Description.
The work uses a scenic composition typical of the Danube school of the time. The subject, the birth of Mary, is shown in a secondary location of the lower part of the painting. It includes St. Anne's bed, the midwives with the daughter and St. Joachim riding a stair with something in his hand. 
The predominant part of the work is the church background, where angels fly to form a large circle: in the middle is a young angel with a thurible for the incense.
The edifice, symbolizing the analogy between Mary and the Catholic church (a subject later abolished by the Protestant Reformation), is organized in a complicated and original fashion: the ambulatory and the column galleries are Romanesque, the ogival windows are Gothic, the vaults and the shell-shaped niches are in Renaissance style. This attention to architectural elements was typical of Altdorfer's work in the period he spent at the court of Maximilian I.