In 1652, the Surat Council of the British Empire urged the British East India Company to purchase Bombay from the Portuguese. In 1654, the British East India Company drew the attention of Oliver Cromwell, the Lord protector of the short lived Commonwealth, to this suggestion by the Surat Council, laying great stress upon its excellent harbour and its natural isolation from land-attacks. By the middle of the seventeenth century the growing power of the Dutch Empire forced the English to acquire a station in western India. By the middle of the seventeenth century the growing power of the Dutch Empire forced the English to acquire a station in western India. On 11 May 1661, the marriage treaty of Charles II of England and Catherine of Braganza, daughter of King John IV of Portugal, placed Bombay in the possession of the British Empire, as part of Catherine's dowry to Charles.