House at the Stone Lamb
At its core, this is a Gothic house, documented around the mid-15th century under the name At the Stone Lamb, and it is decorated mainly with a grand early Renaissance portal with a balcony dated to c. 1531. The portal is connected to the activity of the circle of masons connected to the court of Benedikt Ried. Above the portal is a stone slab with a somewhat mysterious house sign depicting an animal which resembles a lamb with only one horn, and a virgin standing next to it. The mason who worked on the slab in c. 1530 might have reworked an already existing sign with a lamb to present a unicorn. The house is mentioned in archival sources under the name At the White Unicorn from the mid 16th century, a pharmacy was located there from 1778 to 1945.
Like the neighbouring Štorch's house, the house At the Stone Lamb was hit by German shelling aimed at the Old Town centre with the town hall. The south front of the square was one of the most damaged areas due to the repeated attacks from Letná and Pařížská Street. Except for the facade, the house At the Stone Lamb was completely destroyed by fire and had to be rebuilt after the war.