Catharijne is a former municipality on the west side of the Dutch

Netherlands

The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

 city of Utrecht

Utrecht (city)

Utrecht city and municipality is the capital and most populous city of the Dutch province of Utrecht. It is located in the eastern corner of the Randstad conurbation, and is the fourth largest city of the Netherlands with a population of 312,634 on 1 Jan 2011.Utrecht's ancient city centre features...

. It was a separate municipality between 1818 and 1823, when it merged with the city of Utrecht.
It was named for the St. Catharina monastery in Utrecht, which was demolished in 1528 to make way for the castle Vredenburg

Vredenburg (castle)

Vredenburg or Vredeborch was a 16th-century castle built by Habsburg emperor Charles V in the city of Utrecht in the Netherlands. Some remains of the castle, which stood for only 50 years, are still visible on what is now Vredenburg square in Utrecht....

. One of the city gates was named after this monastery; the municipality of Catharijne was on the outside of this gate.