A psychological phenomenon in which hostages express sympathy to their captors is called after a certain city. Which one?

Stockholm syndrome is named after the bank robbery in Stockholm in 1973. Several bank employees were held hostage in a bank vault for 6 days and became emotionally attached to their captors and even defended them after they were freed. Stockholm Syndrome does not necessarily require a hostage scenario. Essentially, victims mistake a lack of abuse from their oppressors for an act of kindness.