Complex sentence: In July of 1831 she made her London debut in Her Majesty's Theatre with Niccolò Paganini and in October she married Antonio James Oury (1800--1883), a violinist at the King's Theatre in London and the two toured as a duo.
Split into simpler sentences: In July of 1831 she made her London debut in Her Majesty's Theatre with Niccolò Paganini. She married Antonio James Oury (1800--1883), a violinist at the King's Theatre in London and the two toured as a duo.