Christchurcha is the singular genitive of Christchurch.

ChristchurchN

Rare in texts

Norwegian Bokmål

ChristchurchNx

Nordsamisk-norsk ordbokdict-sme-nob/src/N_Propgeo_smenob.xml:5968Edit on GitHub Suggest

Case	Sg
Gen	Christchurcha / Christchurch
Ill	Christchurchii
Loc	Christchurchas