Across
6 Ancient Greek mathematician and astronomer who remained a dominant influence in science until the 16th century (7)
7 US political slang for an independent voter, derived from the word for ‘big chief’ in the Algonquin language (7)
10 Female ruler of Egypt who died c1458 BC, having attained the full titles and power of a pharaoh (10)
11 Artist who painted The Third of May 1808, a revolutionary work commemorating Spanish resistance to Napoleon’s forces (4)
12 Sir Thomas ___, lord mayor of London who served during a severe outbreak of plague in the early 1580s (6)
13 Henry ___, 19th-century politician known for designing a type of horse carriage (8)
15 Eldest daughter of Alfred the Great and ruler of the Kingdom of Mercia in the early 10th century (11)