Which preposition to use with ayuntamiento

of Occurrences 1%

He began life as a clerk in the Ayuntamiento of Alcira; then he became secretary to the municipal judge, then assistant to the city clerk, then assistant-registrar of deeds.

with Occurrences 1%

Behind the glorious saint marched Rafael and the gentlemen of the Ayuntamiento with long wax tapers; and after them the curate, grumbling as he heard the first dashes of rain beat on the large red silk umbrella which the sacristan held over him, and felt the impact of the crowd of orchard-folk, that was mixed at random with the musicians.

Which preposition to use with  ayuntamiento