Very common in Portugal is the pavement with figures in black and white stones. Often it are geometric figures, but in the Duke of Terceira park three portraits are seen in the pavement:
António José de Sousa Manuel de Meneses Severim de Noronha, 7.º Conde de Juro e Herdade e 1.º Marquês de Vila Flor e ainda 1.º Duque da Terceira (Lisboa 1792 - Lisboa 1860), Portuguese military officer, statesman and a leader of the Constitutionalist side in the Liberal Wars, as well as a Prime Minister of Portugal
João Batista da Silva Leitão de Almeida Garrett, later 1.º Visconde de Almeida Garrett (Porto 1799 - Lisboa 1854), Portuguese poet, playwright, novelist and politician
Tio António Bendito, known as Ti Bailhão, musician?
Do you know who the sculptor is? please let us know.