Dariga Nursultanqyzy Nazarbayeva is a Kazakh businesswoman and politician who is the daughter of Nursultan Nazarbayev who was the President of Kazakhstan from 1990 to 2019. She was a member of the Mäjilis from 2004 to 2007, 2012 to 2015 and 2021 to 2022. She was Deputy Chairwoman of Mäjilis from 2014 to 2015 until being appointed as a Deputy Prime Minister under Massimov's cabinet. She was a member of the Kazakh Senate from 2016 to 2020, serving as Senate Chairwoman from 2019 to 2020. She is one of the richest women in Kazakhstan.

221B Baker Street is the London address of the fictional detective Sherlock Holmes, created by author Sir Arthur Conan Doyle. In the United Kingdom, postal addresses with a number followed by a letter may indicate a separate address within a larger, often residential building. Baker Street in the late 19th century was a high-class residential district, and Holmes's apartment would probably have been part of a Georgian terrace.