Härkeberga church was built in the early 1300s and was enlarged in the 1400s with the vestry and porch. Also vaults were added then. Albertus Pictor decorated arches and walls with murals in the mid 1480's. The wall paintings were restored in the 1930s.
The paintings in Härkeberga church are Albertus Pictor's finest works. The stories originate from both the Old and New Testaments. They relate to the Biblia Pauperum, a medieval book describing events of Holy Bible as pictures or “comics” for poor and illiterate people.
References:House of the Blackheads (Melngalvju nams) is a building situated in the old town of Riga. The original building was erected during the first third of the 14th century for the Brotherhood of Blackheads, a guild for unmarried German merchants in Riga. Major works were done in the years 1580 and 1886, adding most of the ornaments.
The structure was bombed to a ruin by the Germans June 28, 1941 and the remains demolished by the Soviets in 1948. The current reconstruction was erected from 1995 to 1999. Today the House of Blackheads serves as a museum and sometimes concert hall.