Philip of Alsace

…the countship to his son Philip of Alsace and betook himself once more to Jerusalem. On his return from the East, Thierry retired to a monastery.

…Alsace (1128–68) and his son Philip (1163–91). Toward 1180 Flanders was a major power in northern France.

…Alsace (Thierry, ruled 1128–68, and Philip, 1168–91) kept careful watch, supporting and aiding the towns in their economic development but otherwise keeping the process in check.