Gallica
Trigger: !gallica
Try it
Kagi would openhttps://gallica.bnf.fr/Search?ArianeWireIndex=index&p=1&lang=FR&q=spanish+grammar
Run @gallica in Kagi for Kagi's own results from gallica.bnf.fr only
URL pattern: https://gallica.bnf.fr/Search?ArianeWireIndex=index&p=1&lang=FR&q=query
Searches gallica.bnf.fr, filed under Learning (intl).