Short answers, pulled from the story.
The Manueline architectural style emerged during the reign of King Manuel I from 1495 to 1521. This period marked the precise window when the construction of churches and monasteries took root across the nation.
Architects carved columns to look like twisted strands of rope and frequently placed armillary spheres in doorways as personal emblems of King Manuel I. Shells, pearls, seaweed strings, anchors, and botanical motifs such as laurel branches decorated facades to evoke the ocean and global discovery.
The Jerónimos Monastery designed by Diogo Boitac and João de Castilho remains an outstanding example located in the Belém neighbourhood of Lisbon. The nearby Belém Tower crafted by Francisco de Arruda and the Convent of Christ at Tomar designed by Diogo de Arruda also serve as major monuments.
The style extended to the Azores islands, Madeira, and enclaves in North Africa while spreading throughout Brazil, Goa in Portuguese India, and Macau in China. Its influence appeared in southern Spain, the Canary Islands, and former Spanish colonies like Peru and Mexico.
Diogo Boitac defined the movement through innovative stonework designs on churches and monasteries across Portugal alongside Mateus Fernandes who contributed work on the Unfinished Chapels at the Monastery of Batalha. Francisco de Arruda created the Belém Tower while João de Castilho collaborated on the Jerónimos Monastery.