Complex sentence: Vijaya Rajasinha (reigned 1739-1747) was a member of the Madurai Nayak Dynasty and succeeded his brother-in-law Narendra Singha as the King of Kandy.
Split into simpler sentences: Vijaya Rajasinha (reigned 1739-1747) was a Sinhala king from the Nayakar royal family of Madurai. He succeeded his brother-in-law Narendra Singha as King of Kandy.