What Poul Anderson stories are about the Maurai Federation"?

Answer 1

1. Maurai and Kith (1982), which contains:
o "Ghetto" (1954)
o "The Sky People" (1959)
o "Progress" (1961)
o "The Horn of Time the Hunter" (also known as "Homo Aquaticus", 1963)
o "Windmill" (1973)

2. Orion Shall Rise (1983)