The Karlevi Runestone, designated as Öl 1 by Rundata, is commonly dated to the late 10th century. It is one of the most notable and prominent runestones and constitutes the oldest record of a stanza of skaldic verse.
The runic inscription on the Karlevi Runestone is partly in prose, partly in verse. It is the only example of a complete scaldic stanza preserved on a runestone and is composed in the "lordly meter" the dróttkvætt. It is notable for mentioning Thor's daughter Þrúðr and Viðurr, one of the names for Odin, in kennings for "chieftain." In the second half of the stanza a reference is made to Denmark, but it is not clear what exactly this means in this poetic context.
The stone is contemporary with the Battle of the Fýrisvellir and it is consequently possible that the stone was raised by warriors who partook in it, in memory of their lord. The inscription, which is on a granite stone that is 1.4 meters in height, is classified as being in runestone style RAK. This is the classification with inscriptions with runic text in bands that have no attached dragon or serpent heads and the ends of the runic bands are straight. The non-runic inscription on the reverse side appears to be accompanied by a small Christian cross and a Norse pagan Thor's hammer, or Mjöllnir.
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.