There are / have been horse tramways in the following places in Belgium:
Brussel is the main city of Belgium, situated in the middle of the country. Today there are aboutn 200.000 inhabitants, the same amount as around the year 1880. In the agglomeration of Brussel, consisting of 19 communities, there live today around 1,2 million inhabitants
Brussel was the first town in Belgium where a horse tram was opened. Already in 1869 a short line from the Naamsepoort to the Ter Kamerenbos was opened. Later on the Tramways Bruxellois (TB) opened five tram lines. Another company, the Société Générale de Tramways (CFE) opened some more lines all ending at the Beurs. The lines were laid on normal gauge (1435 mm).
In 1899 the TB started to change its lines to electric trams. Other lines remained in use as horse tram until the outbreak of the First World War.
Unknown to me.