Left-wing Catalan pro-independence representatives of all political varieties made huge gains, with their main grouping, ERC, doubling its numbers in the 135-seat Catalan parliament from 10 to 21 deputies. However, the governing centre-right CiU party, which was supposed to spearhead Catalonia’s independence bid and mastermind a referendum on breaking away from Spain, punctured badly and lost 12 deputies — almost a fifth of its former total.