Is a wife financially responsible for children born to her husband's mistress without her knowledge?

Generally, a wife is not financially responsible for children born to her husband's mistress, as legal responsibility typically falls on the biological parents. In most jurisdictions, the husband would be liable for child support if he is recognized as the biological father. However, laws can vary by location, so it's important to consult legal experts for specific cases. Ultimately, the wife's financial obligations would depend on the legal framework and any agreements in place.