Complex sentence: Knyvet contributed to the downfall of the Howards in 1546, and testified against Surrey at his treason trial in December of that year, and was rewarded with a lease of the manor of Wymondham and other Howard lands.
Split into simpler sentences: Knyvet contributed to the downfall of the Howards in 1546, and testified against Surrey at his treason trial in December of that year. He was rewarded with a lease of the manor of Wymondham and other Howard lands.