The phrase "in this square" is correct and usable in written English.
You can use it in a sentence like: "We often gather in this square to watch the fireworks on the Fourth of July."
Some were executed in this square.
Has she ever fallen in love in this square?
So we cannot allow lawbreakers to hang around freely in this square.
"The people that marched in this square in the 1850s with the people's charter didn't achieve very much that day.
The Reagan monument stands fairly close to the U.S. embassy, which has been in this square through many regimes.
Nearly 150 artists made their career in this square half-mile in the centre of London during this period.
In this square-hexagonal structure, we propose three different schemes for the cavities in order to show the trade-off between switching time and triggering power.
In this square-pyramidal complex, the molecules are linked by hydrogen bonds involving the two carboxylic acid ends into a linear chain that propagates along the a c diagonal of the unit cell.
She extolled working in Camagüey, saying this square in particular was home to many artists.
The United Nations Relief and Works Agency UNRWAA) originally envisaged up to 10,000 Palestinian refugees living in this one square kilometer (0.4 square miles) site.
The clinic was in the middle of this square in some quiet Philadelphia suburb.
