Muslims conquered Bengal around the mid-thirteenth century, bringing with them Persian and Arabic cuisine. Such dishes as biryani, korma and bhuna had once been meals of the higher courts, but the cooks of the Mughals brought their recipes to the lower and middle classes. The influence was reinforced during the rule of the British Raj, where Kolkata became the place of refuge for many prominent exiled Nawabs, notably the family of Tipu Sultan from Mysore and Wajid Ali Shah, the ousted Nawab of Awadh. The exiles brought with them hundreds of cooks and masalchis (spice mixers), and as their royal patronage and wealth diminished, they became interspersed into the local population. These cooks came with the knowledge of a very wide range of spices (most notably jafran and mace), the extensive use of ghee, and marinating meat with yoghurt and chilli.