Thomas Roseingrave, like his father Daniel Roseingrave, was an Irish composer and organist born in England. He was born in Winchester in 1690 or 1691, but spent his early years in Dublin. There he studied music with his father, who was organist at St. Patrick's Cathedral and Christ Church Cathedral in Dublin. In 1707, he began his studies at Trinity College, but did not complete his degree. With financial support from St. Patrick's Cathedral, he was sent to Italy in 1710 to "improve his musical skills." In Venice, he met Domenico Scarlatti and was deeply impressed by his harpsichord playing. He followed Scarlatti to Naples and Rome.
Roseingrave composed several works in Italy, including a hymn and a cantata. He returned to England in 1717, having left Italy for Dublin in 1713. In 1720, he premiered Scarlatti's opera at the Haymarket Theatre, to which he added two arias and two duets of his own composition. In 1725, he was appointed organist at St. George's Church in Hanover Square. He gained renown as a skilled improviser, particularly of fugues. Roseingrave admired the music of Palestrina and was a master of contrapuntal composition. He died on June 23, 1766, in Dún Laoghaire, Ireland.