The physical center of Stockholm is Stortorget in Old Town. Back in Medieval times, the square was also the political and social center of the city. The red building on the left was built in 1479. It is called either Schantzka or Ribbinska Huset. Some claim the white stones, which were added in 1628, symbolize the 82 people who were promised amnesty by Danish King Kristian II after he conquered the city. However, they were arrested while attending his banquet and then beheaded in this square the next day. The 1520 event is called the Stockholm Bloodbath.