Ooops...
Top_Gunn got it while I was writing the previous post.
Fieseler Fi 156 Storch
"a small German liaison aircraft built by Fieseler before and during World War II. Production continued in other countries into the 1950s for the private market. It remains famous to this day for its excellent STOL performance"
"During the war a number of Störche were captured by the Allies. One became the personal aircraft of Field Marshal Montgomery. Others were used as the personal aircraft of Air Vice Marshal Arthur Coningham and Air Vice Marshal Harry Broadhurst, who acquired his Storch in North Africa, and flew it subsequently in Italy and North-West Europe."