Follow the advice of O'Connell; be temperate, moral, peaceable; and you will advance your country, ameliorate your condition, and the blessing of God will attend all your efforts." Bianconi was always a great friend of O'Connell.

From an early period he joined him in the Catholic Emancipation movement.

He took part with him in founding the National Bank in Ireland.

In course of time the two became more intimately related.

Bianconi's son married O'Connell's granddaughter; and O'Connell's nephew, Morgan John, married Bianconi's daughter.