Kaunda ruled Zambia from 1964 to 1991, and celebrates his birthday on April 28.
Other former presidents who attended the luncheon, hosted by incumbent Zambian president Edgar Lungu, included Namibia’s former presidents Samuel Nujoma and Hifikepunye Pohamba, Ramos Horta of East Timor and Botswana’s former president Festus Mogae.
Others included Mozambique’s Joachim Chissano and South Africa’s Jacob Zuma.
Before the luncheon, Chissano led his fellows in laying wreaths at the mausoleums of Zambia’s fallen presidents.
Kaunda, among others, is remembered as a symbol of dedication to the complete decolonisation of Africa.
In a thread on Twitter former South African president Jacob Zuma said Kaunda was a symbol of dedication to the complete decolonisation of Africa.
Zuma said Dr Kaunda put the country on the path of development and peace.