Is it that pronom 'où' is followed by a noun or subject pronoun? As seen in above examples. Thanks a lot

Hi Varsha,

You could say -

C'est la maison où Jeanne a habité dans  les années soixante = That's the house where Jeanne lived in the sixties 

C'est le jour où Bertrand a marqué un but= It's the day when Bertrand scored a goal

Hope this helps!