Complex sentence: In the first decade of the 16th century, Thoresby College was built by Thomas Thoresby to house priests of the Guild of The Holy Trinity in Lynn, which had been incorporated in 1453 on the petition of its alderman, chaplain, four brethren and four sisters.
Split into simpler sentences: In the first decade of the 16th century, Thoresby College was built by Thomas Thoresby to house priests of the Guild of The Holy Trinity in Lynn. The guild had been incorporated in 1453 on the petition of its alderman, chaplain, four brethren and four sisters.