At the home of.
{{quote-journal
to, at, in or into the home, office, etc. of
(uxi)
{{quote-text|fr|year=2013|author=Zaz|title=Je rentre
by extension, to, at or in the country of
in; among (a group of things or people of the same type)
(quote-journal)
in the work of (an author or artist)