Complex sentence: He studied drawings by Italian masters, before settling in London in 1720, where he quickly established himself as the leading sculptor, a position he was to retain until the mid- 1740s, remaining one of the top three sculptors in Britain until shortly before his death.
Split into simpler sentences: He studied drawings by Italian masters, before settling in London in 1720. Here he quickly established himself as the leading sculptor, a position he was to retain until the mid- 1740s, remaining one of the top three sculptors in Britain until shortly before his death.