Hi Jenny...it seems the person who died in 1735, Oct 26 burial, was Louise Cottu his wife (Marie Louise Cotu femme de Jean Baptiste Riel). He was still living or she'd have been "veuve".
Jean-Baptiste himself died in Lavaltrie. He also died in LaPrairie, Quebec City, Lanoraie and Sorel. Quite spry, he was

Jean-Baptiste the son died in 1762, according to Rootsweb:
Death: 26 Dec 1762 in Saint-Philippe, Laprairie, Quebec, Canada
Source:Parish Register, Saint-Philippe, 1753-1877, Laprairie, Quebec, Canada
St-Philippe isn't in Drouin.
I'm okay with the Drouin PRs, thanks...I've translated a couple hundred of them in the past few weeks. Some are just a mess...I spent 3 days staring at one that looked like a Jackson Pollock

I'll keep digging at it.
Cheers,
China