Quezon, officially the Province of Quezon, is a province in the Philippines located in the Calabarzon region on Luzon. Kalilayan was the first known name of the province upon its creation in 1591. Around the middle of the 18th century, it was changed to Tayabas. In recognition of the second president of the Philippines, Manuel L. Quezon, the name of Tayabas Province is changed to Quezon. Lucena, the provincial capital, the seat of the provincial government, and the most populous city of the province, is governed independently from the province as a highly urbanized city. To distinguish the province from Quezon City, it is sometimes called Quezon Province, a variation of the province's official name.

Laguna, officially the Province of Laguna, is a province in the Philippines located in the Calabarzon region in Luzon. Its capital is Santa Cruz while its largest city is the City of Calamba and the province is situated southeast of Metro Manila, south of the province of Rizal, west of Quezon, north of Batangas and east of Cavite. Laguna hugs the southern shores of Laguna de Bay, the largest lake in the country. As of the 2020 census, the province's total population is 3,382,193. It is the seventh richest province in the country in 2016.